Home / 75,666.60-113,536.35-57,891.15

Finding the Fourth Proportional to 75,666.60, 113,536.35 and 57,891.15

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Solution

The fourth proportional to 75,666.60, 113,536.35 and 57,891.15 is: 86,864.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,666.60 : 113,536.35 = 57,891.15 : x
  2. Step 2: Convert to fraction form
    75,666.60/113,536.35 = 57,891.15/x
  3. Step 3: Cross multiply
    75,666.60x = 113,536.35 × 57,891.15
  4. Step 4: Simplify right side
    75,666.60x = 6,572,749,868.30
  5. Step 5: Solve for x
    x = 6,572,749,868.30/75,666.60
  6. Step 6: Final answer
    x = 86,864.61

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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.