Home / 87,523.65-131,285.48-66,528.45

Finding the Fourth Proportional to 87,523.65, 131,285.48 and 66,528.45

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Solution

The fourth proportional to 87,523.65, 131,285.48 and 66,528.45 is: 99,792.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,523.65 : 131,285.48 = 66,528.45 : x
  2. Step 2: Convert to fraction form
    87,523.65/131,285.48 = 66,528.45/x
  3. Step 3: Cross multiply
    87,523.65x = 131,285.48 × 66,528.45
  4. Step 4: Simplify right side
    87,523.65x = 8,734,219,159.26
  5. Step 5: Solve for x
    x = 8,734,219,159.26/87,523.65
  6. Step 6: Final answer
    x = 99,792.68

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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.