Home / 87,860.38-121,247.55-47,574.64

Finding the Fourth Proportional to 87,860.38, 121,247.55 and 47,574.64

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Solution

The fourth proportional to 87,860.38, 121,247.55 and 47,574.64 is: 65,653.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,860.38 : 121,247.55 = 47,574.64 : x
  2. Step 2: Convert to fraction form
    87,860.38/121,247.55 = 47,574.64/x
  3. Step 3: Cross multiply
    87,860.38x = 121,247.55 × 47,574.64
  4. Step 4: Simplify right side
    87,860.38x = 5,768,308,542.13
  5. Step 5: Solve for x
    x = 5,768,308,542.13/87,860.38
  6. Step 6: Final answer
    x = 65,653.13

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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.