Home / 90,723.33-136,088.07-31,559.51

Finding the Fourth Proportional to 90,723.33, 136,088.07 and 31,559.51

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Solution

The fourth proportional to 90,723.33, 136,088.07 and 31,559.51 is: 47,340.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,723.33 : 136,088.07 = 31,559.51 : x
  2. Step 2: Convert to fraction form
    90,723.33/136,088.07 = 31,559.51/x
  3. Step 3: Cross multiply
    90,723.33x = 136,088.07 × 31,559.51
  4. Step 4: Simplify right side
    90,723.33x = 4,294,873,027.92
  5. Step 5: Solve for x
    x = 4,294,873,027.92/90,723.33
  6. Step 6: Final answer
    x = 47,340.34

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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.