Home / 71,456.02-98,615.22-39,635.20

Finding the Fourth Proportional to 71,456.02, 98,615.22 and 39,635.20

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Solution

The fourth proportional to 71,456.02, 98,615.22 and 39,635.20 is: 54,699.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,456.02 : 98,615.22 = 39,635.20 : x
  2. Step 2: Convert to fraction form
    71,456.02/98,615.22 = 39,635.20/x
  3. Step 3: Cross multiply
    71,456.02x = 98,615.22 × 39,635.20
  4. Step 4: Simplify right side
    71,456.02x = 3,908,633,967.74
  5. Step 5: Solve for x
    x = 3,908,633,967.74/71,456.02
  6. Step 6: Final answer
    x = 54,699.86

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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.