Home / 52,386.09-72,293.11-28,512.71

Finding the Fourth Proportional to 52,386.09, 72,293.11 and 28,512.71

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Solution

The fourth proportional to 52,386.09, 72,293.11 and 28,512.71 is: 39,347.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,386.09 : 72,293.11 = 28,512.71 : x
  2. Step 2: Convert to fraction form
    52,386.09/72,293.11 = 28,512.71/x
  3. Step 3: Cross multiply
    52,386.09x = 72,293.11 × 28,512.71
  4. Step 4: Simplify right side
    52,386.09x = 2,061,272,318.78
  5. Step 5: Solve for x
    x = 2,061,272,318.78/52,386.09
  6. Step 6: Final answer
    x = 39,347.70

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1.5x scale

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.