Home / 92,832.78-128,109.38-50,391.35

Finding the Fourth Proportional to 92,832.78, 128,109.38 and 50,391.35

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Solution

The fourth proportional to 92,832.78, 128,109.38 and 50,391.35 is: 69,540.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,832.78 : 128,109.38 = 50,391.35 : x
  2. Step 2: Convert to fraction form
    92,832.78/128,109.38 = 50,391.35/x
  3. Step 3: Cross multiply
    92,832.78x = 128,109.38 × 50,391.35
  4. Step 4: Simplify right side
    92,832.78x = 6,455,604,605.86
  5. Step 5: Solve for x
    x = 6,455,604,605.86/92,832.78
  6. Step 6: Final answer
    x = 69,540.14

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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.