Home / 87,933.81-121,348.80-47,647.92

Finding the Fourth Proportional to 87,933.81, 121,348.80 and 47,647.92

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Solution

The fourth proportional to 87,933.81, 121,348.80 and 47,647.92 is: 65,754.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,933.81 : 121,348.80 = 47,647.92 : x
  2. Step 2: Convert to fraction form
    87,933.81/121,348.80 = 47,647.92/x
  3. Step 3: Cross multiply
    87,933.81x = 121,348.80 × 47,647.92
  4. Step 4: Simplify right side
    87,933.81x = 5,782,017,914.50
  5. Step 5: Solve for x
    x = 5,782,017,914.50/87,933.81
  6. Step 6: Final answer
    x = 65,754.21

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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.