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Finding the Fourth Proportional to 78,094.76, 117,059.52 and 25,490.12

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Solution

The fourth proportional to 78,094.76, 117,059.52 and 25,490.12 is: 38,208.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,094.76 : 117,059.52 = 25,490.12 : x
  2. Step 2: Convert to fraction form
    78,094.76/117,059.52 = 25,490.12/x
  3. Step 3: Cross multiply
    78,094.76x = 117,059.52 × 25,490.12
  4. Step 4: Simplify right side
    78,094.76x = 2,983,861,211.94
  5. Step 5: Solve for x
    x = 2,983,861,211.94/78,094.76
  6. Step 6: Final answer
    x = 38,208.21

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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.