Home / 91,423.68-126,176.80-51,152.88

Finding the Fourth Proportional to 91,423.68, 126,176.80 and 51,152.88

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Solution

The fourth proportional to 91,423.68, 126,176.80 and 51,152.88 is: 70,597.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,423.68 : 126,176.80 = 51,152.88 : x
  2. Step 2: Convert to fraction form
    91,423.68/126,176.80 = 51,152.88/x
  3. Step 3: Cross multiply
    91,423.68x = 126,176.80 × 51,152.88
  4. Step 4: Simplify right side
    91,423.68x = 6,454,306,709.18
  5. Step 5: Solve for x
    x = 6,454,306,709.18/91,423.68
  6. Step 6: Final answer
    x = 70,597.76

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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.