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Finding the Fourth Proportional to 86,703.92, 130,042.60 and 27,531.92

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Solution

The fourth proportional to 86,703.92, 130,042.60 and 27,531.92 is: 41,293.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,703.92 : 130,042.60 = 27,531.92 : x
  2. Step 2: Convert to fraction form
    86,703.92/130,042.60 = 27,531.92/x
  3. Step 3: Cross multiply
    86,703.92x = 130,042.60 × 27,531.92
  4. Step 4: Simplify right side
    86,703.92x = 3,580,322,459.79
  5. Step 5: Solve for x
    x = 3,580,322,459.79/86,703.92
  6. Step 6: Final answer
    x = 41,293.66

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.