Home / 78,693.84-118,052.40-26,091.72

Finding the Fourth Proportional to 78,693.84, 118,052.40 and 26,091.72

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Solution

The fourth proportional to 78,693.84, 118,052.40 and 26,091.72 is: 39,141.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,693.84 : 118,052.40 = 26,091.72 : x
  2. Step 2: Convert to fraction form
    78,693.84/118,052.40 = 26,091.72/x
  3. Step 3: Cross multiply
    78,693.84x = 118,052.40 × 26,091.72
  4. Step 4: Simplify right side
    78,693.84x = 3,080,190,166.13
  5. Step 5: Solve for x
    x = 3,080,190,166.13/78,693.84
  6. Step 6: Final answer
    x = 39,141.44

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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.