Home / 72,021,742.80-108,032,454.09-55,650,831.90

Finding the Fourth Proportional to 72,021,742.80, 108,032,454.09 and 55,650,831.90

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Solution

The fourth proportional to 72,021,742.80, 108,032,454.09 and 55,650,831.90 is: 83,476,124.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,021,742.80 : 108,032,454.09 = 55,650,831.90 : x
  2. Step 2: Convert to fraction form
    72,021,742.80/108,032,454.09 = 55,650,831.90/x
  3. Step 3: Cross multiply
    72,021,742.80x = 108,032,454.09 × 55,650,831.90
  4. Step 4: Simplify right side
    72,021,742.80x = 6,012,095,942,307,058
  5. Step 5: Solve for x
    x = 6,012,095,942,307,058/72,021,742.80
  6. Step 6: Final answer
    x = 83,476,124.13

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.