Home / 79,404.55-109,530.14-47,117.90

Finding the Fourth Proportional to 79,404.55, 109,530.14 and 47,117.90

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Solution

The fourth proportional to 79,404.55, 109,530.14 and 47,117.90 is: 64,994.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,404.55 : 109,530.14 = 47,117.90 : x
  2. Step 2: Convert to fraction form
    79,404.55/109,530.14 = 47,117.90/x
  3. Step 3: Cross multiply
    79,404.55x = 109,530.14 × 47,117.90
  4. Step 4: Simplify right side
    79,404.55x = 5,160,830,288.00
  5. Step 5: Solve for x
    x = 5,160,830,288.00/79,404.55
  6. Step 6: Final answer
    x = 64,994.14

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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.