Home / 89,511.90-123,529.59-49,228.78

Finding the Fourth Proportional to 89,511.90, 123,529.59 and 49,228.78

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Solution

The fourth proportional to 89,511.90, 123,529.59 and 49,228.78 is: 67,937.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,511.90 : 123,529.59 = 49,228.78 : x
  2. Step 2: Convert to fraction form
    89,511.90/123,529.59 = 49,228.78/x
  3. Step 3: Cross multiply
    89,511.90x = 123,529.59 × 49,228.78
  4. Step 4: Simplify right side
    89,511.90x = 6,081,210,145.81
  5. Step 5: Solve for x
    x = 6,081,210,145.81/89,511.90
  6. Step 6: Final answer
    x = 67,937.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.