Home / 52,472.10-78,740.16-20,876.43

Finding the Fourth Proportional to 52,472.10, 78,740.16 and 20,876.43

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Solution

The fourth proportional to 52,472.10, 78,740.16 and 20,876.43 is: 31,327.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,472.10 : 78,740.16 = 20,876.43 : x
  2. Step 2: Convert to fraction form
    52,472.10/78,740.16 = 20,876.43/x
  3. Step 3: Cross multiply
    52,472.10x = 78,740.16 × 20,876.43
  4. Step 4: Simplify right side
    52,472.10x = 1,643,813,438.43
  5. Step 5: Solve for x
    x = 1,643,813,438.43/52,472.10
  6. Step 6: Final answer
    x = 31,327.38

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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.