Home / 83,387.28-115,073.34-45,661.56

Finding the Fourth Proportional to 83,387.28, 115,073.34 and 45,661.56

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Solution

The fourth proportional to 83,387.28, 115,073.34 and 45,661.56 is: 63,012.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,387.28 : 115,073.34 = 45,661.56 : x
  2. Step 2: Convert to fraction form
    83,387.28/115,073.34 = 45,661.56/x
  3. Step 3: Cross multiply
    83,387.28x = 115,073.34 × 45,661.56
  4. Step 4: Simplify right side
    83,387.28x = 5,254,428,218.81
  5. Step 5: Solve for x
    x = 5,254,428,218.81/83,387.28
  6. Step 6: Final answer
    x = 63,012.35

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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.