Home / 75,624.10-113,436.15-69,921.70

Finding the Fourth Proportional to 75,624.10, 113,436.15 and 69,921.70

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Solution

The fourth proportional to 75,624.10, 113,436.15 and 69,921.70 is: 104,882.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,624.10 : 113,436.15 = 69,921.70 : x
  2. Step 2: Convert to fraction form
    75,624.10/113,436.15 = 69,921.70/x
  3. Step 3: Cross multiply
    75,624.10x = 113,436.15 × 69,921.70
  4. Step 4: Simplify right side
    75,624.10x = 7,931,648,449.46
  5. Step 5: Solve for x
    x = 7,931,648,449.46/75,624.10
  6. Step 6: Final answer
    x = 104,882.55

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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.