Home / 65,192.15-89,962.04-40,036.79

Finding the Fourth Proportional to 65,192.15, 89,962.04 and 40,036.79

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Solution

The fourth proportional to 65,192.15, 89,962.04 and 40,036.79 is: 55,248.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,192.15 : 89,962.04 = 40,036.79 : x
  2. Step 2: Convert to fraction form
    65,192.15/89,962.04 = 40,036.79/x
  3. Step 3: Cross multiply
    65,192.15x = 89,962.04 × 40,036.79
  4. Step 4: Simplify right side
    65,192.15x = 3,601,790,853.64
  5. Step 5: Solve for x
    x = 3,601,790,853.64/65,192.15
  6. Step 6: Final answer
    x = 55,248.85

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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.