Home / 74,500.42-111,750.34-30,126.64

Finding the Fourth Proportional to 74,500.42, 111,750.34 and 30,126.64

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Solution

The fourth proportional to 74,500.42, 111,750.34 and 30,126.64 is: 45,189.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,500.42 : 111,750.34 = 30,126.64 : x
  2. Step 2: Convert to fraction form
    74,500.42/111,750.34 = 30,126.64/x
  3. Step 3: Cross multiply
    74,500.42x = 111,750.34 × 30,126.64
  4. Step 4: Simplify right side
    74,500.42x = 3,366,662,263.06
  5. Step 5: Solve for x
    x = 3,366,662,263.06/74,500.42
  6. Step 6: Final answer
    x = 45,189.84

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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.