Home / 99,511.07-149,286.29-28,434.35

Finding the Fourth Proportional to 99,511.07, 149,286.29 and 28,434.35

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Solution

The fourth proportional to 99,511.07, 149,286.29 and 28,434.35 is: 42,657.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,511.07 : 149,286.29 = 28,434.35 : x
  2. Step 2: Convert to fraction form
    99,511.07/149,286.29 = 28,434.35/x
  3. Step 3: Cross multiply
    99,511.07x = 149,286.29 × 28,434.35
  4. Step 4: Simplify right side
    99,511.07x = 4,244,857,731.46
  5. Step 5: Solve for x
    x = 4,244,857,731.46/99,511.07
  6. Step 6: Final answer
    x = 42,657.14

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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.