Home / 87,168.05-130,776.83-45,071.03

Finding the Fourth Proportional to 87,168.05, 130,776.83 and 45,071.03

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Solution

The fourth proportional to 87,168.05, 130,776.83 and 45,071.03 is: 67,619.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,168.05 : 130,776.83 = 45,071.03 : x
  2. Step 2: Convert to fraction form
    87,168.05/130,776.83 = 45,071.03/x
  3. Step 3: Cross multiply
    87,168.05x = 130,776.83 × 45,071.03
  4. Step 4: Simplify right side
    87,168.05x = 5,894,246,698.84
  5. Step 5: Solve for x
    x = 5,894,246,698.84/87,168.05
  6. Step 6: Final answer
    x = 67,619.35

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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.