Home / 90,847.47-136,289.43-31,667.25

Finding the Fourth Proportional to 90,847.47, 136,289.43 and 31,667.25

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Solution

The fourth proportional to 90,847.47, 136,289.43 and 31,667.25 is: 47,507.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,847.47 : 136,289.43 = 31,667.25 : x
  2. Step 2: Convert to fraction form
    90,847.47/136,289.43 = 31,667.25/x
  3. Step 3: Cross multiply
    90,847.47x = 136,289.43 × 31,667.25
  4. Step 4: Simplify right side
    90,847.47x = 4,315,911,452.17
  5. Step 5: Solve for x
    x = 4,315,911,452.17/90,847.47
  6. Step 6: Final answer
    x = 47,507.23

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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.