Home / 90,682.77-135,816.71-43,331.15

Finding the Fourth Proportional to 90,682.77, 135,816.71 and 43,331.15

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Solution

The fourth proportional to 90,682.77, 135,816.71 and 43,331.15 is: 64,897.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,682.77 : 135,816.71 = 43,331.15 : x
  2. Step 2: Convert to fraction form
    90,682.77/135,816.71 = 43,331.15/x
  3. Step 3: Cross multiply
    90,682.77x = 135,816.71 × 43,331.15
  4. Step 4: Simplify right side
    90,682.77x = 5,885,094,681.39
  5. Step 5: Solve for x
    x = 5,885,094,681.39/90,682.77
  6. Step 6: Final answer
    x = 64,897.61

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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.