Home / 78,358.57-117,435.18-36,233.30

Finding the Fourth Proportional to 78,358.57, 117,435.18 and 36,233.30

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Solution

The fourth proportional to 78,358.57, 117,435.18 and 36,233.30 is: 54,302.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,358.57 : 117,435.18 = 36,233.30 : x
  2. Step 2: Convert to fraction form
    78,358.57/117,435.18 = 36,233.30/x
  3. Step 3: Cross multiply
    78,358.57x = 117,435.18 × 36,233.30
  4. Step 4: Simplify right side
    78,358.57x = 4,255,064,107.49
  5. Step 5: Solve for x
    x = 4,255,064,107.49/78,358.57
  6. Step 6: Final answer
    x = 54,302.47

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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.