Home / 78,992.46-118,383.89-34,570.85

Finding the Fourth Proportional to 78,992.46, 118,383.89 and 34,570.85

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Solution

The fourth proportional to 78,992.46, 118,383.89 and 34,570.85 is: 51,810.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,992.46 : 118,383.89 = 34,570.85 : x
  2. Step 2: Convert to fraction form
    78,992.46/118,383.89 = 34,570.85/x
  3. Step 3: Cross multiply
    78,992.46x = 118,383.89 × 34,570.85
  4. Step 4: Simplify right side
    78,992.46x = 4,092,631,703.61
  5. Step 5: Solve for x
    x = 4,092,631,703.61/78,992.46
  6. Step 6: Final answer
    x = 51,810.41

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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.