Home / 78,274.85-108,096.02-54,137.66

Finding the Fourth Proportional to 78,274.85, 108,096.02 and 54,137.66

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Solution

The fourth proportional to 78,274.85, 108,096.02 and 54,137.66 is: 74,763.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,274.85 : 108,096.02 = 54,137.66 : x
  2. Step 2: Convert to fraction form
    78,274.85/108,096.02 = 54,137.66/x
  3. Step 3: Cross multiply
    78,274.85x = 108,096.02 × 54,137.66
  4. Step 4: Simplify right side
    78,274.85x = 5,852,065,172.98
  5. Step 5: Solve for x
    x = 5,852,065,172.98/78,274.85
  6. Step 6: Final answer
    x = 74,763.04

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1.5x scale

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.