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Finding the Fourth Proportional to 90,746.70, 136,046.49 and 40,790.22

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Solution

The fourth proportional to 90,746.70, 136,046.49 and 40,790.22 is: 61,152.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,746.70 : 136,046.49 = 40,790.22 : x
  2. Step 2: Convert to fraction form
    90,746.70/136,046.49 = 40,790.22/x
  3. Step 3: Cross multiply
    90,746.70x = 136,046.49 × 40,790.22
  4. Step 4: Simplify right side
    90,746.70x = 5,549,366,257.33
  5. Step 5: Solve for x
    x = 5,549,366,257.33/90,746.70
  6. Step 6: Final answer
    x = 61,152.27

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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.