Home / 87,807.26-121,174.02-47,521.31

Finding the Fourth Proportional to 87,807.26, 121,174.02 and 47,521.31

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Solution

The fourth proportional to 87,807.26, 121,174.02 and 47,521.31 is: 65,579.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,807.26 : 121,174.02 = 47,521.31 : x
  2. Step 2: Convert to fraction form
    87,807.26/121,174.02 = 47,521.31/x
  3. Step 3: Cross multiply
    87,807.26x = 121,174.02 × 47,521.31
  4. Step 4: Simplify right side
    87,807.26x = 5,758,348,168.37
  5. Step 5: Solve for x
    x = 5,758,348,168.37/87,807.26
  6. Step 6: Final answer
    x = 65,579.41

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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.