Home / 83,538.32-115,272.26-47,730.65

Finding the Fourth Proportional to 83,538.32, 115,272.26 and 47,730.65

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Solution

The fourth proportional to 83,538.32, 115,272.26 and 47,730.65 is: 65,862.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,538.32 : 115,272.26 = 47,730.65 : x
  2. Step 2: Convert to fraction form
    83,538.32/115,272.26 = 47,730.65/x
  3. Step 3: Cross multiply
    83,538.32x = 115,272.26 × 47,730.65
  4. Step 4: Simplify right side
    83,538.32x = 5,502,019,081.75
  5. Step 5: Solve for x
    x = 5,502,019,081.75/83,538.32
  6. Step 6: Final answer
    x = 65,862.22

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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.