Home / 78,739.97-118,085.68-22,565.01

Finding the Fourth Proportional to 78,739.97, 118,085.68 and 22,565.01

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Solution

The fourth proportional to 78,739.97, 118,085.68 and 22,565.01 is: 33,840.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,739.97 : 118,085.68 = 22,565.01 : x
  2. Step 2: Convert to fraction form
    78,739.97/118,085.68 = 22,565.01/x
  3. Step 3: Cross multiply
    78,739.97x = 118,085.68 × 22,565.01
  4. Step 4: Simplify right side
    78,739.97x = 2,664,605,021.08
  5. Step 5: Solve for x
    x = 2,664,605,021.08/78,739.97
  6. Step 6: Final answer
    x = 33,840.57

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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.