Home / 90,339.32-135,555.24-43,007.96

Finding the Fourth Proportional to 90,339.32, 135,555.24 and 43,007.96

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Solution

The fourth proportional to 90,339.32, 135,555.24 and 43,007.96 is: 64,533.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,339.32 : 135,555.24 = 43,007.96 : x
  2. Step 2: Convert to fraction form
    90,339.32/135,555.24 = 43,007.96/x
  3. Step 3: Cross multiply
    90,339.32x = 135,555.24 × 43,007.96
  4. Step 4: Simplify right side
    90,339.32x = 5,829,954,339.71
  5. Step 5: Solve for x
    x = 5,829,954,339.71/90,339.32
  6. Step 6: Final answer
    x = 64,533.96

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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.