Home / 71,156.02-98,189.40-39,324.91

Finding the Fourth Proportional to 71,156.02, 98,189.40 and 39,324.91

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Solution

The fourth proportional to 71,156.02, 98,189.40 and 39,324.91 is: 54,265.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,156.02 : 98,189.40 = 39,324.91 : x
  2. Step 2: Convert to fraction form
    71,156.02/98,189.40 = 39,324.91/x
  3. Step 3: Cross multiply
    71,156.02x = 98,189.40 × 39,324.91
  4. Step 4: Simplify right side
    71,156.02x = 3,861,289,317.95
  5. Step 5: Solve for x
    x = 3,861,289,317.95/71,156.02
  6. Step 6: Final answer
    x = 54,265.11

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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.