Home / 78,848.11-118,228.41-26,228.89

Finding the Fourth Proportional to 78,848.11, 118,228.41 and 26,228.89

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Solution

The fourth proportional to 78,848.11, 118,228.41 and 26,228.89 is: 39,328.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,848.11 : 118,228.41 = 26,228.89 : x
  2. Step 2: Convert to fraction form
    78,848.11/118,228.41 = 26,228.89/x
  3. Step 3: Cross multiply
    78,848.11x = 118,228.41 × 26,228.89
  4. Step 4: Simplify right side
    78,848.11x = 3,100,999,960.76
  5. Step 5: Solve for x
    x = 3,100,999,960.76/78,848.11
  6. Step 6: Final answer
    x = 39,328.78

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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.