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Finding the Fourth Proportional to 86,335.07, 129,521.03 and 48,913.07

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Solution

The fourth proportional to 86,335.07, 129,521.03 and 48,913.07 is: 73,380.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,335.07 : 129,521.03 = 48,913.07 : x
  2. Step 2: Convert to fraction form
    86,335.07/129,521.03 = 48,913.07/x
  3. Step 3: Cross multiply
    86,335.07x = 129,521.03 × 48,913.07
  4. Step 4: Simplify right side
    86,335.07x = 6,335,270,314.69
  5. Step 5: Solve for x
    x = 6,335,270,314.69/86,335.07
  6. Step 6: Final answer
    x = 73,380.04

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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.