Home / 81,456.04-112,304.55-52,724.80

Finding the Fourth Proportional to 81,456.04, 112,304.55 and 52,724.80

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Solution

The fourth proportional to 81,456.04, 112,304.55 and 52,724.80 is: 72,692.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,456.04 : 112,304.55 = 52,724.80 : x
  2. Step 2: Convert to fraction form
    81,456.04/112,304.55 = 52,724.80/x
  3. Step 3: Cross multiply
    81,456.04x = 112,304.55 × 52,724.80
  4. Step 4: Simplify right side
    81,456.04x = 5,921,234,937.84
  5. Step 5: Solve for x
    x = 5,921,234,937.84/81,456.04
  6. Step 6: Final answer
    x = 72,692.40

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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.