Home / 85,260.92-127,901.25-28,339.91

Finding the Fourth Proportional to 85,260.92, 127,901.25 and 28,339.91

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Solution

The fourth proportional to 85,260.92, 127,901.25 and 28,339.91 is: 42,513.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,260.92 : 127,901.25 = 28,339.91 : x
  2. Step 2: Convert to fraction form
    85,260.92/127,901.25 = 28,339.91/x
  3. Step 3: Cross multiply
    85,260.92x = 127,901.25 × 28,339.91
  4. Step 4: Simplify right side
    85,260.92x = 3,624,709,754.01
  5. Step 5: Solve for x
    x = 3,624,709,754.01/85,260.92
  6. Step 6: Final answer
    x = 42,513.15

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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.