Home / 78,935.28-118,408.92-26,344.68

Finding the Fourth Proportional to 78,935.28, 118,408.92 and 26,344.68

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Solution

The fourth proportional to 78,935.28, 118,408.92 and 26,344.68 is: 39,519.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,935.28 : 118,408.92 = 26,344.68 : x
  2. Step 2: Convert to fraction form
    78,935.28/118,408.92 = 26,344.68/x
  3. Step 3: Cross multiply
    78,935.28x = 118,408.92 × 26,344.68
  4. Step 4: Simplify right side
    78,935.28x = 3,119,445,106.55
  5. Step 5: Solve for x
    x = 3,119,445,106.55/78,935.28
  6. Step 6: Final answer
    x = 39,519.02

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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.