Home / 92,845-128,126.10-50,403.88

Finding the Fourth Proportional to 92,845, 128,126.10 and 50,403.88

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Solution

The fourth proportional to 92,845, 128,126.10 and 50,403.88 is: 69,557.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,845 : 128,126.10 = 50,403.88 : x
  2. Step 2: Convert to fraction form
    92,845/128,126.10 = 50,403.88/x
  3. Step 3: Cross multiply
    92,845x = 128,126.10 × 50,403.88
  4. Step 4: Simplify right side
    92,845x = 6,458,052,569.27
  5. Step 5: Solve for x
    x = 6,458,052,569.27/92,845
  6. Step 6: Final answer
    x = 69,557.35

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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.