Home / 79,188.18-109,281.44-45,195.98

Finding the Fourth Proportional to 79,188.18, 109,281.44 and 45,195.98

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Solution

The fourth proportional to 79,188.18, 109,281.44 and 45,195.98 is: 62,371.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,188.18 : 109,281.44 = 45,195.98 : x
  2. Step 2: Convert to fraction form
    79,188.18/109,281.44 = 45,195.98/x
  3. Step 3: Cross multiply
    79,188.18x = 109,281.44 × 45,195.98
  4. Step 4: Simplify right side
    79,188.18x = 4,939,081,343.19
  5. Step 5: Solve for x
    x = 4,939,081,343.19/79,188.18
  6. Step 6: Final answer
    x = 62,371.45

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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.