Home / 79,318.69-109,465.36-45,332.20

Finding the Fourth Proportional to 79,318.69, 109,465.36 and 45,332.20

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Solution

The fourth proportional to 79,318.69, 109,465.36 and 45,332.20 is: 62,561.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,318.69 : 109,465.36 = 45,332.20 : x
  2. Step 2: Convert to fraction form
    79,318.69/109,465.36 = 45,332.20/x
  3. Step 3: Cross multiply
    79,318.69x = 109,465.36 × 45,332.20
  4. Step 4: Simplify right side
    79,318.69x = 4,962,305,365.93
  5. Step 5: Solve for x
    x = 4,962,305,365.93/79,318.69
  6. Step 6: Final answer
    x = 62,561.62

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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.