Home / 81,349.68-112,257.28-45,539.38

Finding the Fourth Proportional to 81,349.68, 112,257.28 and 45,539.38

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Solution

The fourth proportional to 81,349.68, 112,257.28 and 45,539.38 is: 62,841.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,349.68 : 112,257.28 = 45,539.38 : x
  2. Step 2: Convert to fraction form
    81,349.68/112,257.28 = 45,539.38/x
  3. Step 3: Cross multiply
    81,349.68x = 112,257.28 × 45,539.38
  4. Step 4: Simplify right side
    81,349.68x = 5,112,126,931.69
  5. Step 5: Solve for x
    x = 5,112,126,931.69/81,349.68
  6. Step 6: Final answer
    x = 62,841.39

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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.