Home / 74,299.02-102,531.78-40,306.86

Finding the Fourth Proportional to 74,299.02, 102,531.78 and 40,306.86

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Solution

The fourth proportional to 74,299.02, 102,531.78 and 40,306.86 is: 55,623.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,299.02 : 102,531.78 = 40,306.86 : x
  2. Step 2: Convert to fraction form
    74,299.02/102,531.78 = 40,306.86/x
  3. Step 3: Cross multiply
    74,299.02x = 102,531.78 × 40,306.86
  4. Step 4: Simplify right side
    74,299.02x = 4,132,734,102.01
  5. Step 5: Solve for x
    x = 4,132,734,102.01/74,299.02
  6. Step 6: Final answer
    x = 55,623.00

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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.