Home / 61,306.74-91,967.31-21,869.46

Finding the Fourth Proportional to 61,306.74, 91,967.31 and 21,869.46

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Solution

The fourth proportional to 61,306.74, 91,967.31 and 21,869.46 is: 32,806.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,306.74 : 91,967.31 = 21,869.46 : x
  2. Step 2: Convert to fraction form
    61,306.74/91,967.31 = 21,869.46/x
  3. Step 3: Cross multiply
    61,306.74x = 91,967.31 × 21,869.46
  4. Step 4: Simplify right side
    61,306.74x = 2,011,275,407.35
  5. Step 5: Solve for x
    x = 2,011,275,407.35/61,306.74
  6. Step 6: Final answer
    x = 32,806.76

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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.