Home / 67,435.24-100,980.38-65,439.77

Finding the Fourth Proportional to 67,435.24, 100,980.38 and 65,439.77

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Solution

The fourth proportional to 67,435.24, 100,980.38 and 65,439.77 is: 97,992.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,435.24 : 100,980.38 = 65,439.77 : x
  2. Step 2: Convert to fraction form
    67,435.24/100,980.38 = 65,439.77/x
  3. Step 3: Cross multiply
    67,435.24x = 100,980.38 × 65,439.77
  4. Step 4: Simplify right side
    67,435.24x = 6,608,132,841.71
  5. Step 5: Solve for x
    x = 6,608,132,841.71/67,435.24
  6. Step 6: Final answer
    x = 97,992.28

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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.