Home / 75,613.57-113,420.35-31,241.47

Finding the Fourth Proportional to 75,613.57, 113,420.35 and 31,241.47

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Solution

The fourth proportional to 75,613.57, 113,420.35 and 31,241.47 is: 46,862.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,613.57 : 113,420.35 = 31,241.47 : x
  2. Step 2: Convert to fraction form
    75,613.57/113,420.35 = 31,241.47/x
  3. Step 3: Cross multiply
    75,613.57x = 113,420.35 × 31,241.47
  4. Step 4: Simplify right side
    75,613.57x = 3,543,418,461.91
  5. Step 5: Solve for x
    x = 3,543,418,461.91/75,613.57
  6. Step 6: Final answer
    x = 46,862.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.