Home / 87,457.98-131,206.11-28,299.63

Finding the Fourth Proportional to 87,457.98, 131,206.11 and 28,299.63

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Solution

The fourth proportional to 87,457.98, 131,206.11 and 28,299.63 is: 42,455.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,457.98 : 131,206.11 = 28,299.63 : x
  2. Step 2: Convert to fraction form
    87,457.98/131,206.11 = 28,299.63/x
  3. Step 3: Cross multiply
    87,457.98x = 131,206.11 × 28,299.63
  4. Step 4: Simplify right side
    87,457.98x = 3,713,084,366.74
  5. Step 5: Solve for x
    x = 3,713,084,366.74/87,457.98
  6. Step 6: Final answer
    x = 42,455.64

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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.