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Finding the Fourth Proportional to 78,124.60, 117,152.34 and 22,724.92

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Solution

The fourth proportional to 78,124.60, 117,152.34 and 22,724.92 is: 34,077.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,124.60 : 117,152.34 = 22,724.92 : x
  2. Step 2: Convert to fraction form
    78,124.60/117,152.34 = 22,724.92/x
  3. Step 3: Cross multiply
    78,124.60x = 117,152.34 × 22,724.92
  4. Step 4: Simplify right side
    78,124.60x = 2,662,277,554.31
  5. Step 5: Solve for x
    x = 2,662,277,554.31/78,124.60
  6. Step 6: Final answer
    x = 34,077.33

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1.5x scale

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.