Home / 78,367.10-108,153.29-44,381.60

Finding the Fourth Proportional to 78,367.10, 108,153.29 and 44,381.60

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Solution

The fourth proportional to 78,367.10, 108,153.29 and 44,381.60 is: 61,250.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,367.10 : 108,153.29 = 44,381.60 : x
  2. Step 2: Convert to fraction form
    78,367.10/108,153.29 = 44,381.60/x
  3. Step 3: Cross multiply
    78,367.10x = 108,153.29 × 44,381.60
  4. Step 4: Simplify right side
    78,367.10x = 4,800,015,625.65
  5. Step 5: Solve for x
    x = 4,800,015,625.65/78,367.10
  6. Step 6: Final answer
    x = 61,250.40

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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.