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Finding the Fourth Proportional to 73,287.40, 99,015.75 and 73,287.40

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Solution

The fourth proportional to 73,287.40, 99,015.75 and 73,287.40 is: 99,015.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,287.40 : 99,015.75 = 73,287.40 : x
  2. Step 2: Convert to fraction form
    73,287.40/99,015.75 = 73,287.40/x
  3. Step 3: Cross multiply
    73,287.40x = 99,015.75 × 73,287.40
  4. Step 4: Simplify right side
    73,287.40x = 7,256,606,876.55
  5. Step 5: Solve for x
    x = 7,256,606,876.55/73,287.40
  6. Step 6: Final answer
    x = 99,015.75

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Why These Related Problems?

These problems maintain the same ratio (1.35) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.