Home / 51,436.04-77,186.86-21,853.88

Finding the Fourth Proportional to 51,436.04, 77,186.86 and 21,853.88

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Solution

The fourth proportional to 51,436.04, 77,186.86 and 21,853.88 is: 32,794.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,436.04 : 77,186.86 = 21,853.88 : x
  2. Step 2: Convert to fraction form
    51,436.04/77,186.86 = 21,853.88/x
  3. Step 3: Cross multiply
    51,436.04x = 77,186.86 × 21,853.88
  4. Step 4: Simplify right side
    51,436.04x = 1,686,832,588.45
  5. Step 5: Solve for x
    x = 1,686,832,588.45/51,436.04
  6. Step 6: Final answer
    x = 32,794.76

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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.