Home / 78,125.09-107,812.09-44,144.57

Finding the Fourth Proportional to 78,125.09, 107,812.09 and 44,144.57

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Solution

The fourth proportional to 78,125.09, 107,812.09 and 44,144.57 is: 60,919.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,125.09 : 107,812.09 = 44,144.57 : x
  2. Step 2: Convert to fraction form
    78,125.09/107,812.09 = 44,144.57/x
  3. Step 3: Cross multiply
    78,125.09x = 107,812.09 × 44,144.57
  4. Step 4: Simplify right side
    78,125.09x = 4,759,318,513.02
  5. Step 5: Solve for x
    x = 4,759,318,513.02/78,125.09
  6. Step 6: Final answer
    x = 60,919.21

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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.