Home / 74,417.10-111,301.65-66,576.30

Finding the Fourth Proportional to 74,417.10, 111,301.65 and 66,576.30

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Solution

The fourth proportional to 74,417.10, 111,301.65 and 66,576.30 is: 99,574.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,417.10 : 111,301.65 = 66,576.30 : x
  2. Step 2: Convert to fraction form
    74,417.10/111,301.65 = 66,576.30/x
  3. Step 3: Cross multiply
    74,417.10x = 111,301.65 × 66,576.30
  4. Step 4: Simplify right side
    74,417.10x = 7,410,052,040.90
  5. Step 5: Solve for x
    x = 7,410,052,040.90/74,417.10
  6. Step 6: Final answer
    x = 99,574.59

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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.