Home / 83,890.90-115,786.02-48,105.10

Finding the Fourth Proportional to 83,890.90, 115,786.02 and 48,105.10

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Solution

The fourth proportional to 83,890.90, 115,786.02 and 48,105.10 is: 66,394.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,890.90 : 115,786.02 = 48,105.10 : x
  2. Step 2: Convert to fraction form
    83,890.90/115,786.02 = 48,105.10/x
  3. Step 3: Cross multiply
    83,890.90x = 115,786.02 × 48,105.10
  4. Step 4: Simplify right side
    83,890.90x = 5,569,898,070.70
  5. Step 5: Solve for x
    x = 5,569,898,070.70/83,890.90
  6. Step 6: Final answer
    x = 66,394.54

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1.5x scale

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.