Home / 78,848.93-108,809.82-43,039.55

Finding the Fourth Proportional to 78,848.93, 108,809.82 and 43,039.55

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Solution

The fourth proportional to 78,848.93, 108,809.82 and 43,039.55 is: 59,393.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,848.93 : 108,809.82 = 43,039.55 : x
  2. Step 2: Convert to fraction form
    78,848.93/108,809.82 = 43,039.55/x
  3. Step 3: Cross multiply
    78,848.93x = 108,809.82 × 43,039.55
  4. Step 4: Simplify right side
    78,848.93x = 4,683,125,960.41
  5. Step 5: Solve for x
    x = 4,683,125,960.41/78,848.93
  6. Step 6: Final answer
    x = 59,393.65

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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.