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Finding the Fourth Proportional to 79,207.52, 109,303.04 and 47,357.60

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Solution

The fourth proportional to 79,207.52, 109,303.04 and 47,357.60 is: 65,351.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,207.52 : 109,303.04 = 47,357.60 : x
  2. Step 2: Convert to fraction form
    79,207.52/109,303.04 = 47,357.60/x
  3. Step 3: Cross multiply
    79,207.52x = 109,303.04 × 47,357.60
  4. Step 4: Simplify right side
    79,207.52x = 5,176,329,647.10
  5. Step 5: Solve for x
    x = 5,176,329,647.10/79,207.52
  6. Step 6: Final answer
    x = 65,351.49

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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.