Home / 65,787.16-90,786.08-35,572.28

Finding the Fourth Proportional to 65,787.16, 90,786.08 and 35,572.28

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Solution

The fourth proportional to 65,787.16, 90,786.08 and 35,572.28 is: 49,089.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,787.16 : 90,786.08 = 35,572.28 : x
  2. Step 2: Convert to fraction form
    65,787.16/90,786.08 = 35,572.28/x
  3. Step 3: Cross multiply
    65,787.16x = 90,786.08 × 35,572.28
  4. Step 4: Simplify right side
    65,787.16x = 3,229,467,857.86
  5. Step 5: Solve for x
    x = 3,229,467,857.86/65,787.16
  6. Step 6: Final answer
    x = 49,089.64

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.