Home / 90,770.76-136,112.94-31,599.18

Finding the Fourth Proportional to 90,770.76, 136,112.94 and 31,599.18

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Solution

The fourth proportional to 90,770.76, 136,112.94 and 31,599.18 is: 47,383.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,770.76 : 136,112.94 = 31,599.18 : x
  2. Step 2: Convert to fraction form
    90,770.76/136,112.94 = 31,599.18/x
  3. Step 3: Cross multiply
    90,770.76x = 136,112.94 × 31,599.18
  4. Step 4: Simplify right side
    90,770.76x = 4,301,057,291.39
  5. Step 5: Solve for x
    x = 4,301,057,291.39/90,770.76
  6. Step 6: Final answer
    x = 47,383.73

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1.5x scale

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.