Home / 52,475.08-78,724.92-20,887.06

Finding the Fourth Proportional to 52,475.08, 78,724.92 and 20,887.06

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Solution

The fourth proportional to 52,475.08, 78,724.92 and 20,887.06 is: 31,335.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,475.08 : 78,724.92 = 20,887.06 : x
  2. Step 2: Convert to fraction form
    52,475.08/78,724.92 = 20,887.06/x
  3. Step 3: Cross multiply
    52,475.08x = 78,724.92 × 20,887.06
  4. Step 4: Simplify right side
    52,475.08x = 1,644,332,127.54
  5. Step 5: Solve for x
    x = 1,644,332,127.54/52,475.08
  6. Step 6: Final answer
    x = 31,335.49

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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.