Home / 56,357.88-77,773.31-30,516.30

Finding the Fourth Proportional to 56,357.88, 77,773.31 and 30,516.30

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Solution

The fourth proportional to 56,357.88, 77,773.31 and 30,516.30 is: 42,112.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,357.88 : 77,773.31 = 30,516.30 : x
  2. Step 2: Convert to fraction form
    56,357.88/77,773.31 = 30,516.30/x
  3. Step 3: Cross multiply
    56,357.88x = 77,773.31 × 30,516.30
  4. Step 4: Simplify right side
    56,357.88x = 2,373,353,659.95
  5. Step 5: Solve for x
    x = 2,373,353,659.95/56,357.88
  6. Step 6: Final answer
    x = 42,112.19

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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.