Home / 78,848.20-118,358.70-49,299.40

Finding the Fourth Proportional to 78,848.20, 118,358.70 and 49,299.40

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Solution

The fourth proportional to 78,848.20, 118,358.70 and 49,299.40 is: 74,003.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,848.20 : 118,358.70 = 49,299.40 : x
  2. Step 2: Convert to fraction form
    78,848.20/118,358.70 = 49,299.40/x
  3. Step 3: Cross multiply
    78,848.20x = 118,358.70 × 49,299.40
  4. Step 4: Simplify right side
    78,848.20x = 5,835,012,894.78
  5. Step 5: Solve for x
    x = 5,835,012,894.78/78,848.20
  6. Step 6: Final answer
    x = 74,003.12

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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.