Home / 90,038.96-135,058.54-23,479.02

Finding the Fourth Proportional to 90,038.96, 135,058.54 and 23,479.02

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Solution

The fourth proportional to 90,038.96, 135,058.54 and 23,479.02 is: 35,218.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,038.96 : 135,058.54 = 23,479.02 : x
  2. Step 2: Convert to fraction form
    90,038.96/135,058.54 = 23,479.02/x
  3. Step 3: Cross multiply
    90,038.96x = 135,058.54 × 23,479.02
  4. Step 4: Simplify right side
    90,038.96x = 3,171,042,161.83
  5. Step 5: Solve for x
    x = 3,171,042,161.83/90,038.96
  6. Step 6: Final answer
    x = 35,218.56

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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.