Home / 99,594.21-149,390.91-40,429.38

Finding the Fourth Proportional to 99,594.21, 149,390.91 and 40,429.38

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Solution

The fourth proportional to 99,594.21, 149,390.91 and 40,429.38 is: 60,643.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,594.21 : 149,390.91 = 40,429.38 : x
  2. Step 2: Convert to fraction form
    99,594.21/149,390.91 = 40,429.38/x
  3. Step 3: Cross multiply
    99,594.21x = 149,390.91 × 40,429.38
  4. Step 4: Simplify right side
    99,594.21x = 6,039,781,868.94
  5. Step 5: Solve for x
    x = 6,039,781,868.94/99,594.21
  6. Step 6: Final answer
    x = 60,643.91

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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.