Home / 87,643.21-121,006.02-51,844.72

Finding the Fourth Proportional to 87,643.21, 121,006.02 and 51,844.72

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Solution

The fourth proportional to 87,643.21, 121,006.02 and 51,844.72 is: 71,580.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,643.21 : 121,006.02 = 51,844.72 : x
  2. Step 2: Convert to fraction form
    87,643.21/121,006.02 = 51,844.72/x
  3. Step 3: Cross multiply
    87,643.21x = 121,006.02 × 51,844.72
  4. Step 4: Simplify right side
    87,643.21x = 6,273,523,225.21
  5. Step 5: Solve for x
    x = 6,273,523,225.21/87,643.21
  6. Step 6: Final answer
    x = 71,580.25

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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.