Home / 74,459.87-111,689.58-30,086.10

Finding the Fourth Proportional to 74,459.87, 111,689.58 and 30,086.10

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Solution

The fourth proportional to 74,459.87, 111,689.58 and 30,086.10 is: 45,129.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,459.87 : 111,689.58 = 30,086.10 : x
  2. Step 2: Convert to fraction form
    74,459.87/111,689.58 = 30,086.10/x
  3. Step 3: Cross multiply
    74,459.87x = 111,689.58 × 30,086.10
  4. Step 4: Simplify right side
    74,459.87x = 3,360,303,872.84
  5. Step 5: Solve for x
    x = 3,360,303,872.84/74,459.87
  6. Step 6: Final answer
    x = 45,129.06

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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.