Home / 52,302.12-72,177.35-28,428.78

Finding the Fourth Proportional to 52,302.12, 72,177.35 and 28,428.78

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Solution

The fourth proportional to 52,302.12, 72,177.35 and 28,428.78 is: 39,231.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,302.12 : 72,177.35 = 28,428.78 : x
  2. Step 2: Convert to fraction form
    52,302.12/72,177.35 = 28,428.78/x
  3. Step 3: Cross multiply
    52,302.12x = 72,177.35 × 28,428.78
  4. Step 4: Simplify right side
    52,302.12x = 2,051,914,004.13
  5. Step 5: Solve for x
    x = 2,051,914,004.13/52,302.12
  6. Step 6: Final answer
    x = 39,231.95

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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.