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Finding the Fourth Proportional to 97,755.20, 134,902.40 and 53,043.20

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Solution

The fourth proportional to 97,755.20, 134,902.40 and 53,043.20 is: 73,199.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,755.20 : 134,902.40 = 53,043.20 : x
  2. Step 2: Convert to fraction form
    97,755.20/134,902.40 = 53,043.20/x
  3. Step 3: Cross multiply
    97,755.20x = 134,902.40 × 53,043.20
  4. Step 4: Simplify right side
    97,755.20x = 7,155,654,983.68
  5. Step 5: Solve for x
    x = 7,155,654,983.68/97,755.20
  6. Step 6: Final answer
    x = 73,199.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.