Home / 57,107.39-78,807.24-31,613.21

Finding the Fourth Proportional to 57,107.39, 78,807.24 and 31,613.21

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Solution

The fourth proportional to 57,107.39, 78,807.24 and 31,613.21 is: 43,625.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,107.39 : 78,807.24 = 31,613.21 : x
  2. Step 2: Convert to fraction form
    57,107.39/78,807.24 = 31,613.21/x
  3. Step 3: Cross multiply
    57,107.39x = 78,807.24 × 31,613.21
  4. Step 4: Simplify right side
    57,107.39x = 2,491,349,827.64
  5. Step 5: Solve for x
    x = 2,491,349,827.64/57,107.39
  6. Step 6: Final answer
    x = 43,625.70

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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.