Home / 72,021,727.71-108,032,431.59-55,650,816.90

Finding the Fourth Proportional to 72,021,727.71, 108,032,431.59 and 55,650,816.90

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Solution

The fourth proportional to 72,021,727.71, 108,032,431.59 and 55,650,816.90 is: 83,476,101.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,021,727.71 : 108,032,431.59 = 55,650,816.90 : x
  2. Step 2: Convert to fraction form
    72,021,727.71/108,032,431.59 = 55,650,816.90/x
  3. Step 3: Cross multiply
    72,021,727.71x = 108,032,431.59 × 55,650,816.90
  4. Step 4: Simplify right side
    72,021,727.71x = 6,012,093,069,676,866
  5. Step 5: Solve for x
    x = 6,012,093,069,676,866/72,021,727.71
  6. Step 6: Final answer
    x = 83,476,101.74

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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.