Home / 99,628.77-149,442.69-42,694.35

Finding the Fourth Proportional to 99,628.77, 149,442.69 and 42,694.35

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Solution

The fourth proportional to 99,628.77, 149,442.69 and 42,694.35 is: 64,041.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,628.77 : 149,442.69 = 42,694.35 : x
  2. Step 2: Convert to fraction form
    99,628.77/149,442.69 = 42,694.35/x
  3. Step 3: Cross multiply
    99,628.77x = 149,442.69 × 42,694.35
  4. Step 4: Simplify right side
    99,628.77x = 6,380,358,511.80
  5. Step 5: Solve for x
    x = 6,380,358,511.80/99,628.77
  6. Step 6: Final answer
    x = 64,041.33

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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.