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Finding the Fourth Proportional to 83,555.40, 125,411.40 and 44,140.80

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Solution

The fourth proportional to 83,555.40, 125,411.40 and 44,140.80 is: 66,252.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,555.40 : 125,411.40 = 44,140.80 : x
  2. Step 2: Convert to fraction form
    83,555.40/125,411.40 = 44,140.80/x
  3. Step 3: Cross multiply
    83,555.40x = 125,411.40 × 44,140.80
  4. Step 4: Simplify right side
    83,555.40x = 5,535,759,525.12
  5. Step 5: Solve for x
    x = 5,535,759,525.12/83,555.40
  6. Step 6: Final answer
    x = 66,252.56

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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.