Home / 40,491.90-60,776.76-19,729.98

Finding the Fourth Proportional to 40,491.90, 60,776.76 and 19,729.98

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Solution

The fourth proportional to 40,491.90, 60,776.76 and 19,729.98 is: 29,613.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,491.90 : 60,776.76 = 19,729.98 : x
  2. Step 2: Convert to fraction form
    40,491.90/60,776.76 = 19,729.98/x
  3. Step 3: Cross multiply
    40,491.90x = 60,776.76 × 19,729.98
  4. Step 4: Simplify right side
    40,491.90x = 1,199,124,259.26
  5. Step 5: Solve for x
    x = 1,199,124,259.26/40,491.90
  6. Step 6: Final answer
    x = 29,613.93

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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.