Home / 90,701.88-136,052.66-31,537.45

Finding the Fourth Proportional to 90,701.88, 136,052.66 and 31,537.45

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Solution

The fourth proportional to 90,701.88, 136,052.66 and 31,537.45 is: 47,306.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,701.88 : 136,052.66 = 31,537.45 : x
  2. Step 2: Convert to fraction form
    90,701.88/136,052.66 = 31,537.45/x
  3. Step 3: Cross multiply
    90,701.88x = 136,052.66 × 31,537.45
  4. Step 4: Simplify right side
    90,701.88x = 4,290,754,211.03
  5. Step 5: Solve for x
    x = 4,290,754,211.03/90,701.88
  6. Step 6: Final answer
    x = 47,306.12

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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.