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Finding the Fourth Proportional to 83,416.63, 115,167.24 and 64,260.34

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Solution

The fourth proportional to 83,416.63, 115,167.24 and 64,260.34 is: 88,719.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,416.63 : 115,167.24 = 64,260.34 : x
  2. Step 2: Convert to fraction form
    83,416.63/115,167.24 = 64,260.34/x
  3. Step 3: Cross multiply
    83,416.63x = 115,167.24 × 64,260.34
  4. Step 4: Simplify right side
    83,416.63x = 7,400,685,999.26
  5. Step 5: Solve for x
    x = 7,400,685,999.26/83,416.63
  6. Step 6: Final answer
    x = 88,719.55

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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.