Home / 81,197.52-112,052.16-45,387.60

Finding the Fourth Proportional to 81,197.52, 112,052.16 and 45,387.60

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Solution

The fourth proportional to 81,197.52, 112,052.16 and 45,387.60 is: 62,634.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,197.52 : 112,052.16 = 45,387.60 : x
  2. Step 2: Convert to fraction form
    81,197.52/112,052.16 = 45,387.60/x
  3. Step 3: Cross multiply
    81,197.52x = 112,052.16 × 45,387.60
  4. Step 4: Simplify right side
    81,197.52x = 5,085,778,617.22
  5. Step 5: Solve for x
    x = 5,085,778,617.22/81,197.52
  6. Step 6: Final answer
    x = 62,634.65

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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.