Home / 71,318.07-98,422.29-39,487.50

Finding the Fourth Proportional to 71,318.07, 98,422.29 and 39,487.50

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Solution

The fourth proportional to 71,318.07, 98,422.29 and 39,487.50 is: 54,494.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,318.07 : 98,422.29 = 39,487.50 : x
  2. Step 2: Convert to fraction form
    71,318.07/98,422.29 = 39,487.50/x
  3. Step 3: Cross multiply
    71,318.07x = 98,422.29 × 39,487.50
  4. Step 4: Simplify right side
    71,318.07x = 3,886,450,176.38
  5. Step 5: Solve for x
    x = 3,886,450,176.38/71,318.07
  6. Step 6: Final answer
    x = 54,494.61

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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.