Home / 91,330.20-126,049.50-53,621.40

Finding the Fourth Proportional to 91,330.20, 126,049.50 and 53,621.40

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Solution

The fourth proportional to 91,330.20, 126,049.50 and 53,621.40 is: 74,005.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,330.20 : 126,049.50 = 53,621.40 : x
  2. Step 2: Convert to fraction form
    91,330.20/126,049.50 = 53,621.40/x
  3. Step 3: Cross multiply
    91,330.20x = 126,049.50 × 53,621.40
  4. Step 4: Simplify right side
    91,330.20x = 6,758,950,659.30
  5. Step 5: Solve for x
    x = 6,758,950,659.30/91,330.20
  6. Step 6: Final answer
    x = 74,005.65

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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.