Home / 79,261.28-109,381.45-45,274.27

Finding the Fourth Proportional to 79,261.28, 109,381.45 and 45,274.27

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Solution

The fourth proportional to 79,261.28, 109,381.45 and 45,274.27 is: 62,479.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,261.28 : 109,381.45 = 45,274.27 : x
  2. Step 2: Convert to fraction form
    79,261.28/109,381.45 = 45,274.27/x
  3. Step 3: Cross multiply
    79,261.28x = 109,381.45 × 45,274.27
  4. Step 4: Simplify right side
    79,261.28x = 4,952,164,913.65
  5. Step 5: Solve for x
    x = 4,952,164,913.65/79,261.28
  6. Step 6: Final answer
    x = 62,479.00

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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.