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Finding the Fourth Proportional to 78,801.80, 118,094.70 and 50,635.40

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Solution

The fourth proportional to 78,801.80, 118,094.70 and 50,635.40 is: 75,883.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,801.80 : 118,094.70 = 50,635.40 : x
  2. Step 2: Convert to fraction form
    78,801.80/118,094.70 = 50,635.40/x
  3. Step 3: Cross multiply
    78,801.80x = 118,094.70 × 50,635.40
  4. Step 4: Simplify right side
    78,801.80x = 5,979,772,372.38
  5. Step 5: Solve for x
    x = 5,979,772,372.38/78,801.80
  6. Step 6: Final answer
    x = 75,883.70

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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.