Home / 78,937.22-118,424.43-25,625.09

Finding the Fourth Proportional to 78,937.22, 118,424.43 and 25,625.09

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Solution

The fourth proportional to 78,937.22, 118,424.43 and 25,625.09 is: 38,443.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,937.22 : 118,424.43 = 25,625.09 : x
  2. Step 2: Convert to fraction form
    78,937.22/118,424.43 = 25,625.09/x
  3. Step 3: Cross multiply
    78,937.22x = 118,424.43 × 25,625.09
  4. Step 4: Simplify right side
    78,937.22x = 3,034,636,084.83
  5. Step 5: Solve for x
    x = 3,034,636,084.83/78,937.22
  6. Step 6: Final answer
    x = 38,443.67

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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.