Home / 72,541.41-108,761.07-28,130.73

Finding the Fourth Proportional to 72,541.41, 108,761.07 and 28,130.73

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Solution

The fourth proportional to 72,541.41, 108,761.07 and 28,130.73 is: 42,176.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,541.41 : 108,761.07 = 28,130.73 : x
  2. Step 2: Convert to fraction form
    72,541.41/108,761.07 = 28,130.73/x
  3. Step 3: Cross multiply
    72,541.41x = 108,761.07 × 28,130.73
  4. Step 4: Simplify right side
    72,541.41x = 3,059,528,294.68
  5. Step 5: Solve for x
    x = 3,059,528,294.68/72,541.41
  6. Step 6: Final answer
    x = 42,176.30

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1.5x scale

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.