Home / 90,387.81-135,594.41-37,785.33

Finding the Fourth Proportional to 90,387.81, 135,594.41 and 37,785.33

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Solution

The fourth proportional to 90,387.81, 135,594.41 and 37,785.33 is: 56,683.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,387.81 : 135,594.41 = 37,785.33 : x
  2. Step 2: Convert to fraction form
    90,387.81/135,594.41 = 37,785.33/x
  3. Step 3: Cross multiply
    90,387.81x = 135,594.41 × 37,785.33
  4. Step 4: Simplify right side
    90,387.81x = 5,123,479,339.08
  5. Step 5: Solve for x
    x = 5,123,479,339.08/90,387.81
  6. Step 6: Final answer
    x = 56,683.30

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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.