Home / 90,899.56-136,356.63-31,733.92

Finding the Fourth Proportional to 90,899.56, 136,356.63 and 31,733.92

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Solution

The fourth proportional to 90,899.56, 136,356.63 and 31,733.92 is: 47,603.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,899.56 : 136,356.63 = 31,733.92 : x
  2. Step 2: Convert to fraction form
    90,899.56/136,356.63 = 31,733.92/x
  3. Step 3: Cross multiply
    90,899.56x = 136,356.63 × 31,733.92
  4. Step 4: Simplify right side
    90,899.56x = 4,327,130,387.89
  5. Step 5: Solve for x
    x = 4,327,130,387.89/90,899.56
  6. Step 6: Final answer
    x = 47,603.43

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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.