Home / 72,582.74-108,831.72-28,157.58

Finding the Fourth Proportional to 72,582.74, 108,831.72 and 28,157.58

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Solution

The fourth proportional to 72,582.74, 108,831.72 and 28,157.58 is: 42,219.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,582.74 : 108,831.72 = 28,157.58 : x
  2. Step 2: Convert to fraction form
    72,582.74/108,831.72 = 28,157.58/x
  3. Step 3: Cross multiply
    72,582.74x = 108,831.72 × 28,157.58
  4. Step 4: Simplify right side
    72,582.74x = 3,064,437,862.44
  5. Step 5: Solve for x
    x = 3,064,437,862.44/72,582.74
  6. Step 6: Final answer
    x = 42,219.93

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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.