Home / 62,720.76-86,595.20-38,872.76

Finding the Fourth Proportional to 62,720.76, 86,595.20 and 38,872.76

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Solution

The fourth proportional to 62,720.76, 86,595.20 and 38,872.76 is: 53,669.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,720.76 : 86,595.20 = 38,872.76 : x
  2. Step 2: Convert to fraction form
    62,720.76/86,595.20 = 38,872.76/x
  3. Step 3: Cross multiply
    62,720.76x = 86,595.20 × 38,872.76
  4. Step 4: Simplify right side
    62,720.76x = 3,366,194,426.75
  5. Step 5: Solve for x
    x = 3,366,194,426.75/62,720.76
  6. Step 6: Final answer
    x = 53,669.54

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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.