Home / 56,023.26-77,311.72-30,872.76

Finding the Fourth Proportional to 56,023.26, 77,311.72 and 30,872.76

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Solution

The fourth proportional to 56,023.26, 77,311.72 and 30,872.76 is: 42,604.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,023.26 : 77,311.72 = 30,872.76 : x
  2. Step 2: Convert to fraction form
    56,023.26/77,311.72 = 30,872.76/x
  3. Step 3: Cross multiply
    56,023.26x = 77,311.72 × 30,872.76
  4. Step 4: Simplify right side
    56,023.26x = 2,386,826,176.75
  5. Step 5: Solve for x
    x = 2,386,826,176.75/56,023.26
  6. Step 6: Final answer
    x = 42,604.20

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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.