Home / 90,071.08-124,297.38-49,787.56

Finding the Fourth Proportional to 90,071.08, 124,297.38 and 49,787.56

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Solution

The fourth proportional to 90,071.08, 124,297.38 and 49,787.56 is: 68,706.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,071.08 : 124,297.38 = 49,787.56 : x
  2. Step 2: Convert to fraction form
    90,071.08/124,297.38 = 49,787.56/x
  3. Step 3: Cross multiply
    90,071.08x = 124,297.38 × 49,787.56
  4. Step 4: Simplify right side
    90,071.08x = 6,188,463,264.59
  5. Step 5: Solve for x
    x = 6,188,463,264.59/90,071.08
  6. Step 6: Final answer
    x = 68,706.44

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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.