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Finding the Fourth Proportional to 83,358.70, 115,030.86 and 47,547.38

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Solution

The fourth proportional to 83,358.70, 115,030.86 and 47,547.38 is: 65,613.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,358.70 : 115,030.86 = 47,547.38 : x
  2. Step 2: Convert to fraction form
    83,358.70/115,030.86 = 47,547.38/x
  3. Step 3: Cross multiply
    83,358.70x = 115,030.86 × 47,547.38
  4. Step 4: Simplify right side
    83,358.70x = 5,469,416,012.15
  5. Step 5: Solve for x
    x = 5,469,416,012.15/83,358.70
  6. Step 6: Final answer
    x = 65,613.02

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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.