Home / 83,479.06-115,200.86-45,239.66

Finding the Fourth Proportional to 83,479.06, 115,200.86 and 45,239.66

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Solution

The fourth proportional to 83,479.06, 115,200.86 and 45,239.66 is: 62,430.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,479.06 : 115,200.86 = 45,239.66 : x
  2. Step 2: Convert to fraction form
    83,479.06/115,200.86 = 45,239.66/x
  3. Step 3: Cross multiply
    83,479.06x = 115,200.86 × 45,239.66
  4. Step 4: Simplify right side
    83,479.06x = 5,211,647,738.11
  5. Step 5: Solve for x
    x = 5,211,647,738.11/83,479.06
  6. Step 6: Final answer
    x = 62,430.60

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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.