Home / 57,108.46-78,807.20-31,613.32

Finding the Fourth Proportional to 57,108.46, 78,807.20 and 31,613.32

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Solution

The fourth proportional to 57,108.46, 78,807.20 and 31,613.32 is: 43,625.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,108.46 : 78,807.20 = 31,613.32 : x
  2. Step 2: Convert to fraction form
    57,108.46/78,807.20 = 31,613.32/x
  3. Step 3: Cross multiply
    57,108.46x = 78,807.20 × 31,613.32
  4. Step 4: Simplify right side
    57,108.46x = 2,491,357,231.90
  5. Step 5: Solve for x
    x = 2,491,357,231.90/57,108.46
  6. Step 6: Final answer
    x = 43,625.01

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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.