Home / 92,811.62-128,080.10-50,370.15

Finding the Fourth Proportional to 92,811.62, 128,080.10 and 50,370.15

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Solution

The fourth proportional to 92,811.62, 128,080.10 and 50,370.15 is: 69,510.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,811.62 : 128,080.10 = 50,370.15 : x
  2. Step 2: Convert to fraction form
    92,811.62/128,080.10 = 50,370.15/x
  3. Step 3: Cross multiply
    92,811.62x = 128,080.10 × 50,370.15
  4. Step 4: Simplify right side
    92,811.62x = 6,451,413,849.02
  5. Step 5: Solve for x
    x = 6,451,413,849.02/92,811.62
  6. Step 6: Final answer
    x = 69,510.84

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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.