Home / 99,595.21-149,392.41-40,430.38

Finding the Fourth Proportional to 99,595.21, 149,392.41 and 40,430.38

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Solution

The fourth proportional to 99,595.21, 149,392.41 and 40,430.38 is: 60,645.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,595.21 : 149,392.41 = 40,430.38 : x
  2. Step 2: Convert to fraction form
    99,595.21/149,392.41 = 40,430.38/x
  3. Step 3: Cross multiply
    99,595.21x = 149,392.41 × 40,430.38
  4. Step 4: Simplify right side
    99,595.21x = 6,039,991,905.42
  5. Step 5: Solve for x
    x = 6,039,991,905.42/99,595.21
  6. Step 6: Final answer
    x = 60,645.41

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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.