Home / 83,087.10-124,545.60-40,902.30

Finding the Fourth Proportional to 83,087.10, 124,545.60 and 40,902.30

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Solution

The fourth proportional to 83,087.10, 124,545.60 and 40,902.30 is: 61,311.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,087.10 : 124,545.60 = 40,902.30 : x
  2. Step 2: Convert to fraction form
    83,087.10/124,545.60 = 40,902.30/x
  3. Step 3: Cross multiply
    83,087.10x = 124,545.60 × 40,902.30
  4. Step 4: Simplify right side
    83,087.10x = 5,094,201,494.88
  5. Step 5: Solve for x
    x = 5,094,201,494.88/83,087.10
  6. Step 6: Final answer
    x = 61,311.58

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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.