Home / 107,561.79-161,339.04-40,999.50

Finding the Fourth Proportional to 107,561.79, 161,339.04 and 40,999.50

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Solution

The fourth proportional to 107,561.79, 161,339.04 and 40,999.50 is: 61,497.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,561.79 : 161,339.04 = 40,999.50 : x
  2. Step 2: Convert to fraction form
    107,561.79/161,339.04 = 40,999.50/x
  3. Step 3: Cross multiply
    107,561.79x = 161,339.04 × 40,999.50
  4. Step 4: Simplify right side
    107,561.79x = 6,614,819,970.48
  5. Step 5: Solve for x
    x = 6,614,819,970.48/107,561.79
  6. Step 6: Final answer
    x = 61,497.86

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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.