Home / 65,895.12-90,935.44-35,680.50

Finding the Fourth Proportional to 65,895.12, 90,935.44 and 35,680.50

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Solution

The fourth proportional to 65,895.12, 90,935.44 and 35,680.50 is: 49,239.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,895.12 : 90,935.44 = 35,680.50 : x
  2. Step 2: Convert to fraction form
    65,895.12/90,935.44 = 35,680.50/x
  3. Step 3: Cross multiply
    65,895.12x = 90,935.44 × 35,680.50
  4. Step 4: Simplify right side
    65,895.12x = 3,244,621,966.92
  5. Step 5: Solve for x
    x = 3,244,621,966.92/65,895.12
  6. Step 6: Final answer
    x = 49,239.18

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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.