Home / 56,174.28-77,520.48-31,023.78

Finding the Fourth Proportional to 56,174.28, 77,520.48 and 31,023.78

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Solution

The fourth proportional to 56,174.28, 77,520.48 and 31,023.78 is: 42,812.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,174.28 : 77,520.48 = 31,023.78 : x
  2. Step 2: Convert to fraction form
    56,174.28/77,520.48 = 31,023.78/x
  3. Step 3: Cross multiply
    56,174.28x = 77,520.48 × 31,023.78
  4. Step 4: Simplify right side
    56,174.28x = 2,404,978,317.01
  5. Step 5: Solve for x
    x = 2,404,978,317.01/56,174.28
  6. Step 6: Final answer
    x = 42,812.80

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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.