Home / 81,655.68-112,683.88-45,844.80

Finding the Fourth Proportional to 81,655.68, 112,683.88 and 45,844.80

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Solution

The fourth proportional to 81,655.68, 112,683.88 and 45,844.80 is: 63,265.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,655.68 : 112,683.88 = 45,844.80 : x
  2. Step 2: Convert to fraction form
    81,655.68/112,683.88 = 45,844.80/x
  3. Step 3: Cross multiply
    81,655.68x = 112,683.88 × 45,844.80
  4. Step 4: Simplify right side
    81,655.68x = 5,165,969,941.82
  5. Step 5: Solve for x
    x = 5,165,969,941.82/81,655.68
  6. Step 6: Final answer
    x = 63,265.29

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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.