Home / 87,428.84-131,170.80-31,267.58

Finding the Fourth Proportional to 87,428.84, 131,170.80 and 31,267.58

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Solution

The fourth proportional to 87,428.84, 131,170.80 and 31,267.58 is: 46,911.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,428.84 : 131,170.80 = 31,267.58 : x
  2. Step 2: Convert to fraction form
    87,428.84/131,170.80 = 31,267.58/x
  3. Step 3: Cross multiply
    87,428.84x = 131,170.80 × 31,267.58
  4. Step 4: Simplify right side
    87,428.84x = 4,101,393,482.66
  5. Step 5: Solve for x
    x = 4,101,393,482.66/87,428.84
  6. Step 6: Final answer
    x = 46,911.22

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1.5x scale

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.