Home / 71,407.56-98,538.87-39,576.18

Finding the Fourth Proportional to 71,407.56, 98,538.87 and 39,576.18

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Solution

The fourth proportional to 71,407.56, 98,538.87 and 39,576.18 is: 54,613.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,407.56 : 98,538.87 = 39,576.18 : x
  2. Step 2: Convert to fraction form
    71,407.56/98,538.87 = 39,576.18/x
  3. Step 3: Cross multiply
    71,407.56x = 98,538.87 × 39,576.18
  4. Step 4: Simplify right side
    71,407.56x = 3,899,792,056.12
  5. Step 5: Solve for x
    x = 3,899,792,056.12/71,407.56
  6. Step 6: Final answer
    x = 54,613.15

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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.