Home / 87,190.35-130,821.16-31,041.15

Finding the Fourth Proportional to 87,190.35, 130,821.16 and 31,041.15

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Solution

The fourth proportional to 87,190.35, 130,821.16 and 31,041.15 is: 46,574.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,190.35 : 130,821.16 = 31,041.15 : x
  2. Step 2: Convert to fraction form
    87,190.35/130,821.16 = 31,041.15/x
  3. Step 3: Cross multiply
    87,190.35x = 130,821.16 × 31,041.15
  4. Step 4: Simplify right side
    87,190.35x = 4,060,839,250.73
  5. Step 5: Solve for x
    x = 4,060,839,250.73/87,190.35
  6. Step 6: Final answer
    x = 46,574.41

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.