Home / 78,445.02-108,255.78-48,247.41

Finding the Fourth Proportional to 78,445.02, 108,255.78 and 48,247.41

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Solution

The fourth proportional to 78,445.02, 108,255.78 and 48,247.41 is: 66,582.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,445.02 : 108,255.78 = 48,247.41 : x
  2. Step 2: Convert to fraction form
    78,445.02/108,255.78 = 48,247.41/x
  3. Step 3: Cross multiply
    78,445.02x = 108,255.78 × 48,247.41
  4. Step 4: Simplify right side
    78,445.02x = 5,223,061,002.53
  5. Step 5: Solve for x
    x = 5,223,061,002.53/78,445.02
  6. Step 6: Final answer
    x = 66,582.44

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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.