Home / 83,502.60-115,221.04-47,685.03

Finding the Fourth Proportional to 83,502.60, 115,221.04 and 47,685.03

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Solution

The fourth proportional to 83,502.60, 115,221.04 and 47,685.03 is: 65,798.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,502.60 : 115,221.04 = 47,685.03 : x
  2. Step 2: Convert to fraction form
    83,502.60/115,221.04 = 47,685.03/x
  3. Step 3: Cross multiply
    83,502.60x = 115,221.04 × 47,685.03
  4. Step 4: Simplify right side
    83,502.60x = 5,494,318,749.03
  5. Step 5: Solve for x
    x = 5,494,318,749.03/83,502.60
  6. Step 6: Final answer
    x = 65,798.18

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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.