Home / 77,419.68-106,833.78-45,581.82

Finding the Fourth Proportional to 77,419.68, 106,833.78 and 45,581.82

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Solution

The fourth proportional to 77,419.68, 106,833.78 and 45,581.82 is: 62,899.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,419.68 : 106,833.78 = 45,581.82 : x
  2. Step 2: Convert to fraction form
    77,419.68/106,833.78 = 45,581.82/x
  3. Step 3: Cross multiply
    77,419.68x = 106,833.78 × 45,581.82
  4. Step 4: Simplify right side
    77,419.68x = 4,869,678,129.88
  5. Step 5: Solve for x
    x = 4,869,678,129.88/77,419.68
  6. Step 6: Final answer
    x = 62,899.74

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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.