Home / 86,031.11-118,674.82-54,144.65

Finding the Fourth Proportional to 86,031.11, 118,674.82 and 54,144.65

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Solution

The fourth proportional to 86,031.11, 118,674.82 and 54,144.65 is: 74,689.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,031.11 : 118,674.82 = 54,144.65 : x
  2. Step 2: Convert to fraction form
    86,031.11/118,674.82 = 54,144.65/x
  3. Step 3: Cross multiply
    86,031.11x = 118,674.82 × 54,144.65
  4. Step 4: Simplify right side
    86,031.11x = 6,425,606,957.08
  5. Step 5: Solve for x
    x = 6,425,606,957.08/86,031.11
  6. Step 6: Final answer
    x = 74,689.34

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.