Home / 74,015.76-111,074.66-64,145.10

Finding the Fourth Proportional to 74,015.76, 111,074.66 and 64,145.10

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Solution

The fourth proportional to 74,015.76, 111,074.66 and 64,145.10 is: 96,261.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,015.76 : 111,074.66 = 64,145.10 : x
  2. Step 2: Convert to fraction form
    74,015.76/111,074.66 = 64,145.10/x
  3. Step 3: Cross multiply
    74,015.76x = 111,074.66 × 64,145.10
  4. Step 4: Simplify right side
    74,015.76x = 7,124,895,173.17
  5. Step 5: Solve for x
    x = 7,124,895,173.17/74,015.76
  6. Step 6: Final answer
    x = 96,261.87

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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.