Home / 60,618.48-90,939.87-21,165

Finding the Fourth Proportional to 60,618.48, 90,939.87 and 21,165

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Solution

The fourth proportional to 60,618.48, 90,939.87 and 21,165 is: 31,751.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,618.48 : 90,939.87 = 21,165 : x
  2. Step 2: Convert to fraction form
    60,618.48/90,939.87 = 21,165/x
  3. Step 3: Cross multiply
    60,618.48x = 90,939.87 × 21,165
  4. Step 4: Simplify right side
    60,618.48x = 1,924,742,348.55
  5. Step 5: Solve for x
    x = 1,924,742,348.55/60,618.48
  6. Step 6: Final answer
    x = 31,751.74

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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.