Home / 89,717.88-123,809.07-49,435.37

Finding the Fourth Proportional to 89,717.88, 123,809.07 and 49,435.37

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Solution

The fourth proportional to 89,717.88, 123,809.07 and 49,435.37 is: 68,219.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,717.88 : 123,809.07 = 49,435.37 : x
  2. Step 2: Convert to fraction form
    89,717.88/123,809.07 = 49,435.37/x
  3. Step 3: Cross multiply
    89,717.88x = 123,809.07 × 49,435.37
  4. Step 4: Simplify right side
    89,717.88x = 6,120,547,184.81
  5. Step 5: Solve for x
    x = 6,120,547,184.81/89,717.88
  6. Step 6: Final answer
    x = 68,219.93

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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.