Home / 56,061.38-77,364.39-30,910.90

Finding the Fourth Proportional to 56,061.38, 77,364.39 and 30,910.90

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Solution

The fourth proportional to 56,061.38, 77,364.39 and 30,910.90 is: 42,656.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,061.38 : 77,364.39 = 30,910.90 : x
  2. Step 2: Convert to fraction form
    56,061.38/77,364.39 = 30,910.90/x
  3. Step 3: Cross multiply
    56,061.38x = 77,364.39 × 30,910.90
  4. Step 4: Simplify right side
    56,061.38x = 2,391,402,922.85
  5. Step 5: Solve for x
    x = 2,391,402,922.85/56,061.38
  6. Step 6: Final answer
    x = 42,656.87

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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.