Home / 75,464.16-104,141.04-47,186.40

Finding the Fourth Proportional to 75,464.16, 104,141.04 and 47,186.40

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Solution

The fourth proportional to 75,464.16, 104,141.04 and 47,186.40 is: 65,117.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,464.16 : 104,141.04 = 47,186.40 : x
  2. Step 2: Convert to fraction form
    75,464.16/104,141.04 = 47,186.40/x
  3. Step 3: Cross multiply
    75,464.16x = 104,141.04 × 47,186.40
  4. Step 4: Simplify right side
    75,464.16x = 4,914,040,769.86
  5. Step 5: Solve for x
    x = 4,914,040,769.86/75,464.16
  6. Step 6: Final answer
    x = 65,117.54

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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.