Home / 52,343.12-72,231.44-28,469.76

Finding the Fourth Proportional to 52,343.12, 72,231.44 and 28,469.76

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Solution

The fourth proportional to 52,343.12, 72,231.44 and 28,469.76 is: 39,287.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,343.12 : 72,231.44 = 28,469.76 : x
  2. Step 2: Convert to fraction form
    52,343.12/72,231.44 = 28,469.76/x
  3. Step 3: Cross multiply
    52,343.12x = 72,231.44 × 28,469.76
  4. Step 4: Simplify right side
    52,343.12x = 2,056,411,761.25
  5. Step 5: Solve for x
    x = 2,056,411,761.25/52,343.12
  6. Step 6: Final answer
    x = 39,287.15

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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.