Home / 65,215.04-89,992.43-36,141.45

Finding the Fourth Proportional to 65,215.04, 89,992.43 and 36,141.45

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Solution

The fourth proportional to 65,215.04, 89,992.43 and 36,141.45 is: 49,872.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,215.04 : 89,992.43 = 36,141.45 : x
  2. Step 2: Convert to fraction form
    65,215.04/89,992.43 = 36,141.45/x
  3. Step 3: Cross multiply
    65,215.04x = 89,992.43 × 36,141.45
  4. Step 4: Simplify right side
    65,215.04x = 3,252,456,728.52
  5. Step 5: Solve for x
    x = 3,252,456,728.52/65,215.04
  6. Step 6: Final answer
    x = 49,872.81

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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.