Home / 78,308.48-117,463.68-22,905.60

Finding the Fourth Proportional to 78,308.48, 117,463.68 and 22,905.60

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Solution

The fourth proportional to 78,308.48, 117,463.68 and 22,905.60 is: 34,358.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,308.48 : 117,463.68 = 22,905.60 : x
  2. Step 2: Convert to fraction form
    78,308.48/117,463.68 = 22,905.60/x
  3. Step 3: Cross multiply
    78,308.48x = 117,463.68 × 22,905.60
  4. Step 4: Simplify right side
    78,308.48x = 2,690,576,068.61
  5. Step 5: Solve for x
    x = 2,690,576,068.61/78,308.48
  6. Step 6: Final answer
    x = 34,358.68

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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.