Home / 83,345.20-115,015.44-45,619

Finding the Fourth Proportional to 83,345.20, 115,015.44 and 45,619

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Solution

The fourth proportional to 83,345.20, 115,015.44 and 45,619 is: 62,953.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,345.20 : 115,015.44 = 45,619 : x
  2. Step 2: Convert to fraction form
    83,345.20/115,015.44 = 45,619/x
  3. Step 3: Cross multiply
    83,345.20x = 115,015.44 × 45,619
  4. Step 4: Simplify right side
    83,345.20x = 5,246,889,357.36
  5. Step 5: Solve for x
    x = 5,246,889,357.36/83,345.20
  6. Step 6: Final answer
    x = 62,953.71

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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.