Home / 52,080.45-71,871-28,207.12

Finding the Fourth Proportional to 52,080.45, 71,871 and 28,207.12

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Solution

The fourth proportional to 52,080.45, 71,871 and 28,207.12 is: 38,925.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,080.45 : 71,871 = 28,207.12 : x
  2. Step 2: Convert to fraction form
    52,080.45/71,871 = 28,207.12/x
  3. Step 3: Cross multiply
    52,080.45x = 71,871 × 28,207.12
  4. Step 4: Simplify right side
    52,080.45x = 2,027,273,921.52
  5. Step 5: Solve for x
    x = 2,027,273,921.52/52,080.45
  6. Step 6: Final answer
    x = 38,925.81

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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.