Home / 78,582.10-108,445.65-48,384.85

Finding the Fourth Proportional to 78,582.10, 108,445.65 and 48,384.85

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Solution

The fourth proportional to 78,582.10, 108,445.65 and 48,384.85 is: 66,772.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,582.10 : 108,445.65 = 48,384.85 : x
  2. Step 2: Convert to fraction form
    78,582.10/108,445.65 = 48,384.85/x
  3. Step 3: Cross multiply
    78,582.10x = 108,445.65 × 48,384.85
  4. Step 4: Simplify right side
    78,582.10x = 5,247,126,508.40
  5. Step 5: Solve for x
    x = 5,247,126,508.40/78,582.10
  6. Step 6: Final answer
    x = 66,772.54

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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.