Home / 74,020.80-110,976.48-38,431.02

Finding the Fourth Proportional to 74,020.80, 110,976.48 and 38,431.02

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Solution

The fourth proportional to 74,020.80, 110,976.48 and 38,431.02 is: 57,618.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,020.80 : 110,976.48 = 38,431.02 : x
  2. Step 2: Convert to fraction form
    74,020.80/110,976.48 = 38,431.02/x
  3. Step 3: Cross multiply
    74,020.80x = 110,976.48 × 38,431.02
  4. Step 4: Simplify right side
    74,020.80x = 4,264,939,322.41
  5. Step 5: Solve for x
    x = 4,264,939,322.41/74,020.80
  6. Step 6: Final answer
    x = 57,618.12

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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.