Home / 86,133.52-129,080-41,748.48

Finding the Fourth Proportional to 86,133.52, 129,080 and 41,748.48

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Solution

The fourth proportional to 86,133.52, 129,080 and 41,748.48 is: 62,564.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,133.52 : 129,080 = 41,748.48 : x
  2. Step 2: Convert to fraction form
    86,133.52/129,080 = 41,748.48/x
  3. Step 3: Cross multiply
    86,133.52x = 129,080 × 41,748.48
  4. Step 4: Simplify right side
    86,133.52x = 5,388,893,798.40
  5. Step 5: Solve for x
    x = 5,388,893,798.40/86,133.52
  6. Step 6: Final answer
    x = 62,564.42

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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.