Home / 78,787.68-118,182.55-26,197.17

Finding the Fourth Proportional to 78,787.68, 118,182.55 and 26,197.17

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Solution

The fourth proportional to 78,787.68, 118,182.55 and 26,197.17 is: 39,296.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,787.68 : 118,182.55 = 26,197.17 : x
  2. Step 2: Convert to fraction form
    78,787.68/118,182.55 = 26,197.17/x
  3. Step 3: Cross multiply
    78,787.68x = 118,182.55 × 26,197.17
  4. Step 4: Simplify right side
    78,787.68x = 3,096,047,762.47
  5. Step 5: Solve for x
    x = 3,096,047,762.47/78,787.68
  6. Step 6: Final answer
    x = 39,296.09

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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.