Home / 77,216.13-115,605.78-49,066.40

Finding the Fourth Proportional to 77,216.13, 115,605.78 and 49,066.40

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Solution

The fourth proportional to 77,216.13, 115,605.78 and 49,066.40 is: 73,460.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,216.13 : 115,605.78 = 49,066.40 : x
  2. Step 2: Convert to fraction form
    77,216.13/115,605.78 = 49,066.40/x
  3. Step 3: Cross multiply
    77,216.13x = 115,605.78 × 49,066.40
  4. Step 4: Simplify right side
    77,216.13x = 5,672,359,443.79
  5. Step 5: Solve for x
    x = 5,672,359,443.79/77,216.13
  6. Step 6: Final answer
    x = 73,460.81

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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.