Home / 70,521.18-97,321.95-38,691.42

Finding the Fourth Proportional to 70,521.18, 97,321.95 and 38,691.42

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Solution

The fourth proportional to 70,521.18, 97,321.95 and 38,691.42 is: 53,395.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,521.18 : 97,321.95 = 38,691.42 : x
  2. Step 2: Convert to fraction form
    70,521.18/97,321.95 = 38,691.42/x
  3. Step 3: Cross multiply
    70,521.18x = 97,321.95 × 38,691.42
  4. Step 4: Simplify right side
    70,521.18x = 3,765,524,442.67
  5. Step 5: Solve for x
    x = 3,765,524,442.67/70,521.18
  6. Step 6: Final answer
    x = 53,395.65

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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.