Home / 87,834-121,210.86-47,548.08

Finding the Fourth Proportional to 87,834, 121,210.86 and 47,548.08

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Solution

The fourth proportional to 87,834, 121,210.86 and 47,548.08 is: 65,616.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,834 : 121,210.86 = 47,548.08 : x
  2. Step 2: Convert to fraction form
    87,834/121,210.86 = 47,548.08/x
  3. Step 3: Cross multiply
    87,834x = 121,210.86 × 47,548.08
  4. Step 4: Simplify right side
    87,834x = 5,763,343,668.15
  5. Step 5: Solve for x
    x = 5,763,343,668.15/87,834
  6. Step 6: Final answer
    x = 65,616.32

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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.