Home / 52,305.12-72,180.65-28,431.18

Finding the Fourth Proportional to 52,305.12, 72,180.65 and 28,431.18

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Solution

The fourth proportional to 52,305.12, 72,180.65 and 28,431.18 is: 39,234.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,305.12 : 72,180.65 = 28,431.18 : x
  2. Step 2: Convert to fraction form
    52,305.12/72,180.65 = 28,431.18/x
  3. Step 3: Cross multiply
    52,305.12x = 72,180.65 × 28,431.18
  4. Step 4: Simplify right side
    52,305.12x = 2,052,181,123.74
  5. Step 5: Solve for x
    x = 2,052,181,123.74/52,305.12
  6. Step 6: Final answer
    x = 39,234.80

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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.