Home / 81,438.03-112,387.58-45,626.82

Finding the Fourth Proportional to 81,438.03, 112,387.58 and 45,626.82

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Solution

The fourth proportional to 81,438.03, 112,387.58 and 45,626.82 is: 62,966.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,438.03 : 112,387.58 = 45,626.82 : x
  2. Step 2: Convert to fraction form
    81,438.03/112,387.58 = 45,626.82/x
  3. Step 3: Cross multiply
    81,438.03x = 112,387.58 × 45,626.82
  4. Step 4: Simplify right side
    81,438.03x = 5,127,887,882.90
  5. Step 5: Solve for x
    x = 5,127,887,882.90/81,438.03
  6. Step 6: Final answer
    x = 62,966.75

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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.