Home / 75,130.86-112,753.38-27,790.74

Finding the Fourth Proportional to 75,130.86, 112,753.38 and 27,790.74

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Solution

The fourth proportional to 75,130.86, 112,753.38 and 27,790.74 is: 41,707.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,130.86 : 112,753.38 = 27,790.74 : x
  2. Step 2: Convert to fraction form
    75,130.86/112,753.38 = 27,790.74/x
  3. Step 3: Cross multiply
    75,130.86x = 112,753.38 × 27,790.74
  4. Step 4: Simplify right side
    75,130.86x = 3,133,499,867.70
  5. Step 5: Solve for x
    x = 3,133,499,867.70/75,130.86
  6. Step 6: Final answer
    x = 41,707.23

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.