Home / 87,837.70-121,216.06-47,551.46

Finding the Fourth Proportional to 87,837.70, 121,216.06 and 47,551.46

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Solution

The fourth proportional to 87,837.70, 121,216.06 and 47,551.46 is: 65,621.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,837.70 : 121,216.06 = 47,551.46 : x
  2. Step 2: Convert to fraction form
    87,837.70/121,216.06 = 47,551.46/x
  3. Step 3: Cross multiply
    87,837.70x = 121,216.06 × 47,551.46
  4. Step 4: Simplify right side
    87,837.70x = 5,763,999,784.61
  5. Step 5: Solve for x
    x = 5,763,999,784.61/87,837.70
  6. Step 6: Final answer
    x = 65,621.03

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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.