Home / 77,881.16-107,476.43-43,890.18

Finding the Fourth Proportional to 77,881.16, 107,476.43 and 43,890.18

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Solution

The fourth proportional to 77,881.16, 107,476.43 and 43,890.18 is: 60,568.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,881.16 : 107,476.43 = 43,890.18 : x
  2. Step 2: Convert to fraction form
    77,881.16/107,476.43 = 43,890.18/x
  3. Step 3: Cross multiply
    77,881.16x = 107,476.43 × 43,890.18
  4. Step 4: Simplify right side
    77,881.16x = 4,717,159,235.97
  5. Step 5: Solve for x
    x = 4,717,159,235.97/77,881.16
  6. Step 6: Final answer
    x = 60,568.68

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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.