Home / 55,439.40-83,159.10-49,315.80

Finding the Fourth Proportional to 55,439.40, 83,159.10 and 49,315.80

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Solution

The fourth proportional to 55,439.40, 83,159.10 and 49,315.80 is: 73,973.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,439.40 : 83,159.10 = 49,315.80 : x
  2. Step 2: Convert to fraction form
    55,439.40/83,159.10 = 49,315.80/x
  3. Step 3: Cross multiply
    55,439.40x = 83,159.10 × 49,315.80
  4. Step 4: Simplify right side
    55,439.40x = 4,101,057,543.78
  5. Step 5: Solve for x
    x = 4,101,057,543.78/55,439.40
  6. Step 6: Final answer
    x = 73,973.70

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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.