Home / 52,703.28-72,731.60-28,831.52

Finding the Fourth Proportional to 52,703.28, 72,731.60 and 28,831.52

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Solution

The fourth proportional to 52,703.28, 72,731.60 and 28,831.52 is: 39,788.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,703.28 : 72,731.60 = 28,831.52 : x
  2. Step 2: Convert to fraction form
    52,703.28/72,731.60 = 28,831.52/x
  3. Step 3: Cross multiply
    52,703.28x = 72,731.60 × 28,831.52
  4. Step 4: Simplify right side
    52,703.28x = 2,096,962,580.03
  5. Step 5: Solve for x
    x = 2,096,962,580.03/52,703.28
  6. Step 6: Final answer
    x = 39,788.08

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.