Home / 78,960.27-118,502.54-36,818.65

Finding the Fourth Proportional to 78,960.27, 118,502.54 and 36,818.65

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Solution

The fourth proportional to 78,960.27, 118,502.54 and 36,818.65 is: 55,256.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,960.27 : 118,502.54 = 36,818.65 : x
  2. Step 2: Convert to fraction form
    78,960.27/118,502.54 = 36,818.65/x
  3. Step 3: Cross multiply
    78,960.27x = 118,502.54 × 36,818.65
  4. Step 4: Simplify right side
    78,960.27x = 4,363,103,853.58
  5. Step 5: Solve for x
    x = 4,363,103,853.58/78,960.27
  6. Step 6: Final answer
    x = 55,256.95

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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.