Home / 90,817.92-136,264.32-40,190.40

Finding the Fourth Proportional to 90,817.92, 136,264.32 and 40,190.40

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Solution

The fourth proportional to 90,817.92, 136,264.32 and 40,190.40 is: 60,302.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,817.92 : 136,264.32 = 40,190.40 : x
  2. Step 2: Convert to fraction form
    90,817.92/136,264.32 = 40,190.40/x
  3. Step 3: Cross multiply
    90,817.92x = 136,264.32 × 40,190.40
  4. Step 4: Simplify right side
    90,817.92x = 5,476,517,526.53
  5. Step 5: Solve for x
    x = 5,476,517,526.53/90,817.92
  6. Step 6: Final answer
    x = 60,302.17

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1.5x scale

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.