Home / 70,610.12-97,442.10-38,781.08

Finding the Fourth Proportional to 70,610.12, 97,442.10 and 38,781.08

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Solution

The fourth proportional to 70,610.12, 97,442.10 and 38,781.08 is: 53,517.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,610.12 : 97,442.10 = 38,781.08 : x
  2. Step 2: Convert to fraction form
    70,610.12/97,442.10 = 38,781.08/x
  3. Step 3: Cross multiply
    70,610.12x = 97,442.10 × 38,781.08
  4. Step 4: Simplify right side
    70,610.12x = 3,778,909,875.47
  5. Step 5: Solve for x
    x = 3,778,909,875.47/70,610.12
  6. Step 6: Final answer
    x = 53,517.96

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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.