Home / 81,567.42-112,498.11-67,395.66

Finding the Fourth Proportional to 81,567.42, 112,498.11 and 67,395.66

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Solution

The fourth proportional to 81,567.42, 112,498.11 and 67,395.66 is: 92,952.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,567.42 : 112,498.11 = 67,395.66 : x
  2. Step 2: Convert to fraction form
    81,567.42/112,498.11 = 67,395.66/x
  3. Step 3: Cross multiply
    81,567.42x = 112,498.11 × 67,395.66
  4. Step 4: Simplify right side
    81,567.42x = 7,581,884,372.20
  5. Step 5: Solve for x
    x = 7,581,884,372.20/81,567.42
  6. Step 6: Final answer
    x = 92,952.36

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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.