Home / 83,085.40-124,628.10-49,907.80

Finding the Fourth Proportional to 83,085.40, 124,628.10 and 49,907.80

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Solution

The fourth proportional to 83,085.40, 124,628.10 and 49,907.80 is: 74,861.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,085.40 : 124,628.10 = 49,907.80 : x
  2. Step 2: Convert to fraction form
    83,085.40/124,628.10 = 49,907.80/x
  3. Step 3: Cross multiply
    83,085.40x = 124,628.10 × 49,907.80
  4. Step 4: Simplify right side
    83,085.40x = 6,219,914,289.18
  5. Step 5: Solve for x
    x = 6,219,914,289.18/83,085.40
  6. Step 6: Final answer
    x = 74,861.70

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Similar ratio
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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.