Home / 89,972.57-124,164.09-49,688.91

Finding the Fourth Proportional to 89,972.57, 124,164.09 and 49,688.91

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Solution

The fourth proportional to 89,972.57, 124,164.09 and 49,688.91 is: 68,571.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,972.57 : 124,164.09 = 49,688.91 : x
  2. Step 2: Convert to fraction form
    89,972.57/124,164.09 = 49,688.91/x
  3. Step 3: Cross multiply
    89,972.57x = 124,164.09 × 49,688.91
  4. Step 4: Simplify right side
    89,972.57x = 6,169,578,293.24
  5. Step 5: Solve for x
    x = 6,169,578,293.24/89,972.57
  6. Step 6: Final answer
    x = 68,571.77

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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.