Home / 77,721.52-107,246.17-49,030.35

Finding the Fourth Proportional to 77,721.52, 107,246.17 and 49,030.35

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Solution

The fourth proportional to 77,721.52, 107,246.17 and 49,030.35 is: 67,655.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,721.52 : 107,246.17 = 49,030.35 : x
  2. Step 2: Convert to fraction form
    77,721.52/107,246.17 = 49,030.35/x
  3. Step 3: Cross multiply
    77,721.52x = 107,246.17 × 49,030.35
  4. Step 4: Simplify right side
    77,721.52x = 5,258,317,006.11
  5. Step 5: Solve for x
    x = 5,258,317,006.11/77,721.52
  6. Step 6: Final answer
    x = 67,655.87

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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.