Home / 77,062.20-115,593.30-47,513.40

Finding the Fourth Proportional to 77,062.20, 115,593.30 and 47,513.40

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Solution

The fourth proportional to 77,062.20, 115,593.30 and 47,513.40 is: 71,270.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,062.20 : 115,593.30 = 47,513.40 : x
  2. Step 2: Convert to fraction form
    77,062.20/115,593.30 = 47,513.40/x
  3. Step 3: Cross multiply
    77,062.20x = 115,593.30 × 47,513.40
  4. Step 4: Simplify right side
    77,062.20x = 5,492,230,700.22
  5. Step 5: Solve for x
    x = 5,492,230,700.22/77,062.20
  6. Step 6: Final answer
    x = 71,270.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.