Home / 81,494.20-112,459.83-45,686.53

Finding the Fourth Proportional to 81,494.20, 112,459.83 and 45,686.53

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Solution

The fourth proportional to 81,494.20, 112,459.83 and 45,686.53 is: 63,046.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,494.20 : 112,459.83 = 45,686.53 : x
  2. Step 2: Convert to fraction form
    81,494.20/112,459.83 = 45,686.53/x
  3. Step 3: Cross multiply
    81,494.20x = 112,459.83 × 45,686.53
  4. Step 4: Simplify right side
    81,494.20x = 5,137,899,397.09
  5. Step 5: Solve for x
    x = 5,137,899,397.09/81,494.20
  6. Step 6: Final answer
    x = 63,046.20

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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.