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Finding the Fourth Proportional to 79,332.75, 109,479.20 and 45,798.75

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Solution

The fourth proportional to 79,332.75, 109,479.20 and 45,798.75 is: 63,202.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,332.75 : 109,479.20 = 45,798.75 : x
  2. Step 2: Convert to fraction form
    79,332.75/109,479.20 = 45,798.75/x
  3. Step 3: Cross multiply
    79,332.75x = 109,479.20 × 45,798.75
  4. Step 4: Simplify right side
    79,332.75x = 5,014,010,282.01
  5. Step 5: Solve for x
    x = 5,014,010,282.01/79,332.75
  6. Step 6: Final answer
    x = 63,202.28

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1.5x scale

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.