Home / 77,138.06-115,756.29-51,550.16

Finding the Fourth Proportional to 77,138.06, 115,756.29 and 51,550.16

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Solution

The fourth proportional to 77,138.06, 115,756.29 and 51,550.16 is: 77,358.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,138.06 : 115,756.29 = 51,550.16 : x
  2. Step 2: Convert to fraction form
    77,138.06/115,756.29 = 51,550.16/x
  3. Step 3: Cross multiply
    77,138.06x = 115,756.29 × 51,550.16
  4. Step 4: Simplify right side
    77,138.06x = 5,967,254,691.72
  5. Step 5: Solve for x
    x = 5,967,254,691.72/77,138.06
  6. Step 6: Final answer
    x = 77,358.12

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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.