Home / 79,138.84-118,719.78-23,739.16

Finding the Fourth Proportional to 79,138.84, 118,719.78 and 23,739.16

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Solution

The fourth proportional to 79,138.84, 118,719.78 and 23,739.16 is: 35,612.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,138.84 : 118,719.78 = 23,739.16 : x
  2. Step 2: Convert to fraction form
    79,138.84/118,719.78 = 23,739.16/x
  3. Step 3: Cross multiply
    79,138.84x = 118,719.78 × 23,739.16
  4. Step 4: Simplify right side
    79,138.84x = 2,818,307,852.58
  5. Step 5: Solve for x
    x = 2,818,307,852.58/79,138.84
  6. Step 6: Final answer
    x = 35,612.20

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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.