Home / 55,136.96-76,089.24-29,986.40

Finding the Fourth Proportional to 55,136.96, 76,089.24 and 29,986.40

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Solution

The fourth proportional to 55,136.96, 76,089.24 and 29,986.40 is: 41,381.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,136.96 : 76,089.24 = 29,986.40 : x
  2. Step 2: Convert to fraction form
    55,136.96/76,089.24 = 29,986.40/x
  3. Step 3: Cross multiply
    55,136.96x = 76,089.24 × 29,986.40
  4. Step 4: Simplify right side
    55,136.96x = 2,281,642,386.34
  5. Step 5: Solve for x
    x = 2,281,642,386.34/55,136.96
  6. Step 6: Final answer
    x = 41,381.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.