Home / 78,557.22-108,432.09-47,941.38

Finding the Fourth Proportional to 78,557.22, 108,432.09 and 47,941.38

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Solution

The fourth proportional to 78,557.22, 108,432.09 and 47,941.38 is: 66,173.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,557.22 : 108,432.09 = 47,941.38 : x
  2. Step 2: Convert to fraction form
    78,557.22/108,432.09 = 47,941.38/x
  3. Step 3: Cross multiply
    78,557.22x = 108,432.09 × 47,941.38
  4. Step 4: Simplify right side
    78,557.22x = 5,198,384,030.88
  5. Step 5: Solve for x
    x = 5,198,384,030.88/78,557.22
  6. Step 6: Final answer
    x = 66,173.22

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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.