Home / 90,849.32-136,235.08-31,667.48

Finding the Fourth Proportional to 90,849.32, 136,235.08 and 31,667.48

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Solution

The fourth proportional to 90,849.32, 136,235.08 and 31,667.48 is: 47,487.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,849.32 : 136,235.08 = 31,667.48 : x
  2. Step 2: Convert to fraction form
    90,849.32/136,235.08 = 31,667.48/x
  3. Step 3: Cross multiply
    90,849.32x = 136,235.08 × 31,667.48
  4. Step 4: Simplify right side
    90,849.32x = 4,314,221,671.20
  5. Step 5: Solve for x
    x = 4,314,221,671.20/90,849.32
  6. Step 6: Final answer
    x = 47,487.66

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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.