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Finding the Fourth Proportional to 86,080.65, 129,130.80 and 22,903.35

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Solution

The fourth proportional to 86,080.65, 129,130.80 and 22,903.35 is: 34,357.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,080.65 : 129,130.80 = 22,903.35 : x
  2. Step 2: Convert to fraction form
    86,080.65/129,130.80 = 22,903.35/x
  3. Step 3: Cross multiply
    86,080.65x = 129,130.80 × 22,903.35
  4. Step 4: Simplify right side
    86,080.65x = 2,957,527,908.18
  5. Step 5: Solve for x
    x = 2,957,527,908.18/86,080.65
  6. Step 6: Final answer
    x = 34,357.64

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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.