Home / 52,278.20-72,128-29,613.58

Finding the Fourth Proportional to 52,278.20, 72,128 and 29,613.58

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Solution

The fourth proportional to 52,278.20, 72,128 and 29,613.58 is: 40,857.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,278.20 : 72,128 = 29,613.58 : x
  2. Step 2: Convert to fraction form
    52,278.20/72,128 = 29,613.58/x
  3. Step 3: Cross multiply
    52,278.20x = 72,128 × 29,613.58
  4. Step 4: Simplify right side
    52,278.20x = 2,135,968,298.24
  5. Step 5: Solve for x
    x = 2,135,968,298.24/52,278.20
  6. Step 6: Final answer
    x = 40,857.72

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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.