Home / 81,335.25-112,243.23-45,528.57

Finding the Fourth Proportional to 81,335.25, 112,243.23 and 45,528.57

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Solution

The fourth proportional to 81,335.25, 112,243.23 and 45,528.57 is: 62,829.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,335.25 : 112,243.23 = 45,528.57 : x
  2. Step 2: Convert to fraction form
    81,335.25/112,243.23 = 45,528.57/x
  3. Step 3: Cross multiply
    81,335.25x = 112,243.23 × 45,528.57
  4. Step 4: Simplify right side
    81,335.25x = 5,110,273,754.08
  5. Step 5: Solve for x
    x = 5,110,273,754.08/81,335.25
  6. Step 6: Final answer
    x = 62,829.75

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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.