Home / 86,582.12-129,892.66-30,426.10

Finding the Fourth Proportional to 86,582.12, 129,892.66 and 30,426.10

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Solution

The fourth proportional to 86,582.12, 129,892.66 and 30,426.10 is: 45,645.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,582.12 : 129,892.66 = 30,426.10 : x
  2. Step 2: Convert to fraction form
    86,582.12/129,892.66 = 30,426.10/x
  3. Step 3: Cross multiply
    86,582.12x = 129,892.66 × 30,426.10
  4. Step 4: Simplify right side
    86,582.12x = 3,952,126,661.63
  5. Step 5: Solve for x
    x = 3,952,126,661.63/86,582.12
  6. Step 6: Final answer
    x = 45,645.99

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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.