Home / 90,899.32-136,356.26-31,733.68

Finding the Fourth Proportional to 90,899.32, 136,356.26 and 31,733.68

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Solution

The fourth proportional to 90,899.32, 136,356.26 and 31,733.68 is: 47,603.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,899.32 : 136,356.26 = 31,733.68 : x
  2. Step 2: Convert to fraction form
    90,899.32/136,356.26 = 31,733.68/x
  3. Step 3: Cross multiply
    90,899.32x = 136,356.26 × 31,733.68
  4. Step 4: Simplify right side
    90,899.32x = 4,327,085,920.84
  5. Step 5: Solve for x
    x = 4,327,085,920.84/90,899.32
  6. Step 6: Final answer
    x = 47,603.06

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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.