Home / 78,753.29-108,660.02-48,118.50

Finding the Fourth Proportional to 78,753.29, 108,660.02 and 48,118.50

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Solution

The fourth proportional to 78,753.29, 108,660.02 and 48,118.50 is: 66,391.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,753.29 : 108,660.02 = 48,118.50 : x
  2. Step 2: Convert to fraction form
    78,753.29/108,660.02 = 48,118.50/x
  3. Step 3: Cross multiply
    78,753.29x = 108,660.02 × 48,118.50
  4. Step 4: Simplify right side
    78,753.29x = 5,228,556,931.78
  5. Step 5: Solve for x
    x = 5,228,556,931.78/78,753.29
  6. Step 6: Final answer
    x = 66,391.60

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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.