Home / 61,319.91-91,991.27-21,337.23

Finding the Fourth Proportional to 61,319.91, 91,991.27 and 21,337.23

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Solution

The fourth proportional to 61,319.91, 91,991.27 and 21,337.23 is: 32,009.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,319.91 : 91,991.27 = 21,337.23 : x
  2. Step 2: Convert to fraction form
    61,319.91/91,991.27 = 21,337.23/x
  3. Step 3: Cross multiply
    61,319.91x = 91,991.27 × 21,337.23
  4. Step 4: Simplify right side
    61,319.91x = 1,962,838,885.98
  5. Step 5: Solve for x
    x = 1,962,838,885.98/61,319.91
  6. Step 6: Final answer
    x = 32,009.81

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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.