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Finding the Fourth Proportional to 79,405.26, 109,588.98 and 45,871.26

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Solution

The fourth proportional to 79,405.26, 109,588.98 and 45,871.26 is: 63,307.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,405.26 : 109,588.98 = 45,871.26 : x
  2. Step 2: Convert to fraction form
    79,405.26/109,588.98 = 45,871.26/x
  3. Step 3: Cross multiply
    79,405.26x = 109,588.98 × 45,871.26
  4. Step 4: Simplify right side
    79,405.26x = 5,026,984,594.71
  5. Step 5: Solve for x
    x = 5,026,984,594.71/79,405.26
  6. Step 6: Final answer
    x = 63,307.95

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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.