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Finding the Fourth Proportional to 79,488.04, 109,701.93 and 47,659.90

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Solution

The fourth proportional to 79,488.04, 109,701.93 and 47,659.90 is: 65,775.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,488.04 : 109,701.93 = 47,659.90 : x
  2. Step 2: Convert to fraction form
    79,488.04/109,701.93 = 47,659.90/x
  3. Step 3: Cross multiply
    79,488.04x = 109,701.93 × 47,659.90
  4. Step 4: Simplify right side
    79,488.04x = 5,228,383,013.61
  5. Step 5: Solve for x
    x = 5,228,383,013.61/79,488.04
  6. Step 6: Final answer
    x = 65,775.72

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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.