Home / 83,840.10-125,760.15-21,510.60

Finding the Fourth Proportional to 83,840.10, 125,760.15 and 21,510.60

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Solution

The fourth proportional to 83,840.10, 125,760.15 and 21,510.60 is: 32,265.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,840.10 : 125,760.15 = 21,510.60 : x
  2. Step 2: Convert to fraction form
    83,840.10/125,760.15 = 21,510.60/x
  3. Step 3: Cross multiply
    83,840.10x = 125,760.15 × 21,510.60
  4. Step 4: Simplify right side
    83,840.10x = 2,705,176,282.59
  5. Step 5: Solve for x
    x = 2,705,176,282.59/83,840.10
  6. Step 6: Final answer
    x = 32,265.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.