Home / 56,110.50-77,434.11-30,961.62

Finding the Fourth Proportional to 56,110.50, 77,434.11 and 30,961.62

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Solution

The fourth proportional to 56,110.50, 77,434.11 and 30,961.62 is: 42,727.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,110.50 : 77,434.11 = 30,961.62 : x
  2. Step 2: Convert to fraction form
    56,110.50/77,434.11 = 30,961.62/x
  3. Step 3: Cross multiply
    56,110.50x = 77,434.11 × 30,961.62
  4. Step 4: Simplify right side
    56,110.50x = 2,397,485,488.86
  5. Step 5: Solve for x
    x = 2,397,485,488.86/56,110.50
  6. Step 6: Final answer
    x = 42,727.93

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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.