Home / 83,345.20-115,019.30-45,619.48

Finding the Fourth Proportional to 83,345.20, 115,019.30 and 45,619.48

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Solution

The fourth proportional to 83,345.20, 115,019.30 and 45,619.48 is: 62,956.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,345.20 : 115,019.30 = 45,619.48 : x
  2. Step 2: Convert to fraction form
    83,345.20/115,019.30 = 45,619.48/x
  3. Step 3: Cross multiply
    83,345.20x = 115,019.30 × 45,619.48
  4. Step 4: Simplify right side
    83,345.20x = 5,247,120,655.96
  5. Step 5: Solve for x
    x = 5,247,120,655.96/83,345.20
  6. Step 6: Final answer
    x = 62,956.48

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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.