Home / 78,521.33-108,378.68-44,549.70

Finding the Fourth Proportional to 78,521.33, 108,378.68 and 44,549.70

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Solution

The fourth proportional to 78,521.33, 108,378.68 and 44,549.70 is: 61,489.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,521.33 : 108,378.68 = 44,549.70 : x
  2. Step 2: Convert to fraction form
    78,521.33/108,378.68 = 44,549.70/x
  3. Step 3: Cross multiply
    78,521.33x = 108,378.68 × 44,549.70
  4. Step 4: Simplify right side
    78,521.33x = 4,828,238,096.59
  5. Step 5: Solve for x
    x = 4,828,238,096.59/78,521.33
  6. Step 6: Final answer
    x = 61,489.51

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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.