Home / 61,329.12-91,952.32-21,337.80

Finding the Fourth Proportional to 61,329.12, 91,952.32 and 21,337.80

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Solution

The fourth proportional to 61,329.12, 91,952.32 and 21,337.80 is: 31,992.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,329.12 : 91,952.32 = 21,337.80 : x
  2. Step 2: Convert to fraction form
    61,329.12/91,952.32 = 21,337.80/x
  3. Step 3: Cross multiply
    61,329.12x = 91,952.32 × 21,337.80
  4. Step 4: Simplify right side
    61,329.12x = 1,962,060,213.70
  5. Step 5: Solve for x
    x = 1,962,060,213.70/61,329.12
  6. Step 6: Final answer
    x = 31,992.31

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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.