Home / 79,268.15-109,390.94-45,281.14

Finding the Fourth Proportional to 79,268.15, 109,390.94 and 45,281.14

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Solution

The fourth proportional to 79,268.15, 109,390.94 and 45,281.14 is: 62,488.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,268.15 : 109,390.94 = 45,281.14 : x
  2. Step 2: Convert to fraction form
    79,268.15/109,390.94 = 45,281.14/x
  3. Step 3: Cross multiply
    79,268.15x = 109,390.94 × 45,281.14
  4. Step 4: Simplify right side
    79,268.15x = 4,953,346,468.87
  5. Step 5: Solve for x
    x = 4,953,346,468.87/79,268.15
  6. Step 6: Final answer
    x = 62,488.48

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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.