Home / 77,148.10-115,771.29-51,560.20

Finding the Fourth Proportional to 77,148.10, 115,771.29 and 51,560.20

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Solution

The fourth proportional to 77,148.10, 115,771.29 and 51,560.20 is: 77,373.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,148.10 : 115,771.29 = 51,560.20 : x
  2. Step 2: Convert to fraction form
    77,148.10/115,771.29 = 51,560.20/x
  3. Step 3: Cross multiply
    77,148.10x = 115,771.29 × 51,560.20
  4. Step 4: Simplify right side
    77,148.10x = 5,969,190,866.66
  5. Step 5: Solve for x
    x = 5,969,190,866.66/77,148.10
  6. Step 6: Final answer
    x = 77,373.14

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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.