Home / 83,720.66-115,532.56-45,479.34

Finding the Fourth Proportional to 83,720.66, 115,532.56 and 45,479.34

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Solution

The fourth proportional to 83,720.66, 115,532.56 and 45,479.34 is: 62,760.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,720.66 : 115,532.56 = 45,479.34 : x
  2. Step 2: Convert to fraction form
    83,720.66/115,532.56 = 45,479.34/x
  3. Step 3: Cross multiply
    83,720.66x = 115,532.56 × 45,479.34
  4. Step 4: Simplify right side
    83,720.66x = 5,254,344,577.31
  5. Step 5: Solve for x
    x = 5,254,344,577.31/83,720.66
  6. Step 6: Final answer
    x = 62,760.43

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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.