Home / 71,707.16-98,958.28-39,443.14

Finding the Fourth Proportional to 71,707.16, 98,958.28 and 39,443.14

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Solution

The fourth proportional to 71,707.16, 98,958.28 and 39,443.14 is: 54,432.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,707.16 : 98,958.28 = 39,443.14 : x
  2. Step 2: Convert to fraction form
    71,707.16/98,958.28 = 39,443.14/x
  3. Step 3: Cross multiply
    71,707.16x = 98,958.28 × 39,443.14
  4. Step 4: Simplify right side
    71,707.16x = 3,903,225,292.20
  5. Step 5: Solve for x
    x = 3,903,225,292.20/71,707.16
  6. Step 6: Final answer
    x = 54,432.85

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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.