Home / 99,386.89-149,049.99-28,315.33

Finding the Fourth Proportional to 99,386.89, 149,049.99 and 28,315.33

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Solution

The fourth proportional to 99,386.89, 149,049.99 and 28,315.33 is: 42,464.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,386.89 : 149,049.99 = 28,315.33 : x
  2. Step 2: Convert to fraction form
    99,386.89/149,049.99 = 28,315.33/x
  3. Step 3: Cross multiply
    99,386.89x = 149,049.99 × 28,315.33
  4. Step 4: Simplify right side
    99,386.89x = 4,220,399,653.35
  5. Step 5: Solve for x
    x = 4,220,399,653.35/99,386.89
  6. Step 6: Final answer
    x = 42,464.35

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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.