Home / 80,988.02-111,763.50-45,177.92

Finding the Fourth Proportional to 80,988.02, 111,763.50 and 45,177.92

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Solution

The fourth proportional to 80,988.02, 111,763.50 and 45,177.92 is: 62,345.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,988.02 : 111,763.50 = 45,177.92 : x
  2. Step 2: Convert to fraction form
    80,988.02/111,763.50 = 45,177.92/x
  3. Step 3: Cross multiply
    80,988.02x = 111,763.50 × 45,177.92
  4. Step 4: Simplify right side
    80,988.02x = 5,049,242,461.92
  5. Step 5: Solve for x
    x = 5,049,242,461.92/80,988.02
  6. Step 6: Final answer
    x = 62,345.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.