Home / 83,582.42-115,244.98-68,419.22

Finding the Fourth Proportional to 83,582.42, 115,244.98 and 68,419.22

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Solution

The fourth proportional to 83,582.42, 115,244.98 and 68,419.22 is: 94,337.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,582.42 : 115,244.98 = 68,419.22 : x
  2. Step 2: Convert to fraction form
    83,582.42/115,244.98 = 68,419.22/x
  3. Step 3: Cross multiply
    83,582.42x = 115,244.98 × 68,419.22
  4. Step 4: Simplify right side
    83,582.42x = 7,884,970,893.24
  5. Step 5: Solve for x
    x = 7,884,970,893.24/83,582.42
  6. Step 6: Final answer
    x = 94,337.68

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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.