Home / 90,523.18-135,752.37-31,342.96

Finding the Fourth Proportional to 90,523.18, 135,752.37 and 31,342.96

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Solution

The fourth proportional to 90,523.18, 135,752.37 and 31,342.96 is: 47,003.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,523.18 : 135,752.37 = 31,342.96 : x
  2. Step 2: Convert to fraction form
    90,523.18/135,752.37 = 31,342.96/x
  3. Step 3: Cross multiply
    90,523.18x = 135,752.37 × 31,342.96
  4. Step 4: Simplify right side
    90,523.18x = 4,254,881,102.82
  5. Step 5: Solve for x
    x = 4,254,881,102.82/90,523.18
  6. Step 6: Final answer
    x = 47,003.22

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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.