Home / 78,742.75-118,114.13-23,338.75

Finding the Fourth Proportional to 78,742.75, 118,114.13 and 23,338.75

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Solution

The fourth proportional to 78,742.75, 118,114.13 and 23,338.75 is: 35,008.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,742.75 : 118,114.13 = 23,338.75 : x
  2. Step 2: Convert to fraction form
    78,742.75/118,114.13 = 23,338.75/x
  3. Step 3: Cross multiply
    78,742.75x = 118,114.13 × 23,338.75
  4. Step 4: Simplify right side
    78,742.75x = 2,756,636,034.84
  5. Step 5: Solve for x
    x = 2,756,636,034.84/78,742.75
  6. Step 6: Final answer
    x = 35,008.13

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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.