Home / 83,749.52-115,564.64-47,937.39

Finding the Fourth Proportional to 83,749.52, 115,564.64 and 47,937.39

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Solution

The fourth proportional to 83,749.52, 115,564.64 and 47,937.39 is: 66,148.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,749.52 : 115,564.64 = 47,937.39 : x
  2. Step 2: Convert to fraction form
    83,749.52/115,564.64 = 47,937.39/x
  3. Step 3: Cross multiply
    83,749.52x = 115,564.64 × 47,937.39
  4. Step 4: Simplify right side
    83,749.52x = 5,539,866,978.20
  5. Step 5: Solve for x
    x = 5,539,866,978.20/83,749.52
  6. Step 6: Final answer
    x = 66,148.05

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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.