Home / 87,570.64-131,550.36-54,315.28

Finding the Fourth Proportional to 87,570.64, 131,550.36 and 54,315.28

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Solution

The fourth proportional to 87,570.64, 131,550.36 and 54,315.28 is: 81,593.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,570.64 : 131,550.36 = 54,315.28 : x
  2. Step 2: Convert to fraction form
    87,570.64/131,550.36 = 54,315.28/x
  3. Step 3: Cross multiply
    87,570.64x = 131,550.36 × 54,315.28
  4. Step 4: Simplify right side
    87,570.64x = 7,145,194,637.50
  5. Step 5: Solve for x
    x = 7,145,194,637.50/87,570.64
  6. Step 6: Final answer
    x = 81,593.50

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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.