Home / 78,923.48-118,371-22,749.80

Finding the Fourth Proportional to 78,923.48, 118,371 and 22,749.80

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Solution

The fourth proportional to 78,923.48, 118,371 and 22,749.80 is: 34,120.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,923.48 : 118,371 = 22,749.80 : x
  2. Step 2: Convert to fraction form
    78,923.48/118,371 = 22,749.80/x
  3. Step 3: Cross multiply
    78,923.48x = 118,371 × 22,749.80
  4. Step 4: Simplify right side
    78,923.48x = 2,692,916,575.80
  5. Step 5: Solve for x
    x = 2,692,916,575.80/78,923.48
  6. Step 6: Final answer
    x = 34,120.60

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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.