Home / 90,894.04-136,373.88-31,738.44

Finding the Fourth Proportional to 90,894.04, 136,373.88 and 31,738.44

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Solution

The fourth proportional to 90,894.04, 136,373.88 and 31,738.44 is: 47,619.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,894.04 : 136,373.88 = 31,738.44 : x
  2. Step 2: Convert to fraction form
    90,894.04/136,373.88 = 31,738.44/x
  3. Step 3: Cross multiply
    90,894.04x = 136,373.88 × 31,738.44
  4. Step 4: Simplify right side
    90,894.04x = 4,328,294,207.95
  5. Step 5: Solve for x
    x = 4,328,294,207.95/90,894.04
  6. Step 6: Final answer
    x = 47,619.12

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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.