Home / 77,881.48-107,476.86-43,890.49

Finding the Fourth Proportional to 77,881.48, 107,476.86 and 43,890.49

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Solution

The fourth proportional to 77,881.48, 107,476.86 and 43,890.49 is: 60,569.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,881.48 : 107,476.86 = 43,890.49 : x
  2. Step 2: Convert to fraction form
    77,881.48/107,476.86 = 43,890.49/x
  3. Step 3: Cross multiply
    77,881.48x = 107,476.86 × 43,890.49
  4. Step 4: Simplify right side
    77,881.48x = 4,717,211,829.61
  5. Step 5: Solve for x
    x = 4,717,211,829.61/77,881.48
  6. Step 6: Final answer
    x = 60,569.11

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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.