Home / 74,459.62-111,689.34-30,086.36

Finding the Fourth Proportional to 74,459.62, 111,689.34 and 30,086.36

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Solution

The fourth proportional to 74,459.62, 111,689.34 and 30,086.36 is: 45,129.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,459.62 : 111,689.34 = 30,086.36 : x
  2. Step 2: Convert to fraction form
    74,459.62/111,689.34 = 30,086.36/x
  3. Step 3: Cross multiply
    74,459.62x = 111,689.34 × 30,086.36
  4. Step 4: Simplify right side
    74,459.62x = 3,360,325,691.40
  5. Step 5: Solve for x
    x = 3,360,325,691.40/74,459.62
  6. Step 6: Final answer
    x = 45,129.50

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1.5x scale

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.