Home / 81,437.90-112,381.18-45,626.10

Finding the Fourth Proportional to 81,437.90, 112,381.18 and 45,626.10

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Solution

The fourth proportional to 81,437.90, 112,381.18 and 45,626.10 is: 62,962.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,437.90 : 112,381.18 = 45,626.10 : x
  2. Step 2: Convert to fraction form
    81,437.90/112,381.18 = 45,626.10/x
  3. Step 3: Cross multiply
    81,437.90x = 112,381.18 × 45,626.10
  4. Step 4: Simplify right side
    81,437.90x = 5,127,514,956.80
  5. Step 5: Solve for x
    x = 5,127,514,956.80/81,437.90
  6. Step 6: Final answer
    x = 62,962.27

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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.