Home / 83,397.56-115,088.47-45,157.15

Finding the Fourth Proportional to 83,397.56, 115,088.47 and 45,157.15

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Solution

The fourth proportional to 83,397.56, 115,088.47 and 45,157.15 is: 62,316.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,397.56 : 115,088.47 = 45,157.15 : x
  2. Step 2: Convert to fraction form
    83,397.56/115,088.47 = 45,157.15/x
  3. Step 3: Cross multiply
    83,397.56x = 115,088.47 × 45,157.15
  4. Step 4: Simplify right side
    83,397.56x = 5,197,067,303.06
  5. Step 5: Solve for x
    x = 5,197,067,303.06/83,397.56
  6. Step 6: Final answer
    x = 62,316.78

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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.