Home / 78,743.08-108,577.17-64,358.27

Finding the Fourth Proportional to 78,743.08, 108,577.17 and 64,358.27

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Solution

The fourth proportional to 78,743.08, 108,577.17 and 64,358.27 is: 88,742.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,743.08 : 108,577.17 = 64,358.27 : x
  2. Step 2: Convert to fraction form
    78,743.08/108,577.17 = 64,358.27/x
  3. Step 3: Cross multiply
    78,743.08x = 108,577.17 × 64,358.27
  4. Step 4: Simplify right side
    78,743.08x = 6,987,838,822.70
  5. Step 5: Solve for x
    x = 6,987,838,822.70/78,743.08
  6. Step 6: Final answer
    x = 88,742.26

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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.