Home / 90,712.24-125,184.38-49,878.08

Finding the Fourth Proportional to 90,712.24, 125,184.38 and 49,878.08

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Solution

The fourth proportional to 90,712.24, 125,184.38 and 49,878.08 is: 68,832.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,712.24 : 125,184.38 = 49,878.08 : x
  2. Step 2: Convert to fraction form
    90,712.24/125,184.38 = 49,878.08/x
  3. Step 3: Cross multiply
    90,712.24x = 125,184.38 × 49,878.08
  4. Step 4: Simplify right side
    90,712.24x = 6,243,956,520.39
  5. Step 5: Solve for x
    x = 6,243,956,520.39/90,712.24
  6. Step 6: Final answer
    x = 68,832.57

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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.