Home / 60,842.24-83,939.20-39,639.68

Finding the Fourth Proportional to 60,842.24, 83,939.20 and 39,639.68

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Solution

The fourth proportional to 60,842.24, 83,939.20 and 39,639.68 is: 54,687.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,842.24 : 83,939.20 = 39,639.68 : x
  2. Step 2: Convert to fraction form
    60,842.24/83,939.20 = 39,639.68/x
  3. Step 3: Cross multiply
    60,842.24x = 83,939.20 × 39,639.68
  4. Step 4: Simplify right side
    60,842.24x = 3,327,323,027.46
  5. Step 5: Solve for x
    x = 3,327,323,027.46/60,842.24
  6. Step 6: Final answer
    x = 54,687.71

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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.