Home / 78,869.18-108,851.97-50,158.91

Finding the Fourth Proportional to 78,869.18, 108,851.97 and 50,158.91

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Solution

The fourth proportional to 78,869.18, 108,851.97 and 50,158.91 is: 69,227.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,869.18 : 108,851.97 = 50,158.91 : x
  2. Step 2: Convert to fraction form
    78,869.18/108,851.97 = 50,158.91/x
  3. Step 3: Cross multiply
    78,869.18x = 108,851.97 × 50,158.91
  4. Step 4: Simplify right side
    78,869.18x = 5,459,896,344.63
  5. Step 5: Solve for x
    x = 5,459,896,344.63/78,869.18
  6. Step 6: Final answer
    x = 69,227.25

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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.