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Finding the Fourth Proportional to 90,303.58, 135,497.41 and 40,417.43

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Solution

The fourth proportional to 90,303.58, 135,497.41 and 40,417.43 is: 60,644.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,303.58 : 135,497.41 = 40,417.43 : x
  2. Step 2: Convert to fraction form
    90,303.58/135,497.41 = 40,417.43/x
  3. Step 3: Cross multiply
    90,303.58x = 135,497.41 × 40,417.43
  4. Step 4: Simplify right side
    90,303.58x = 5,476,457,067.50
  5. Step 5: Solve for x
    x = 5,476,457,067.50/90,303.58
  6. Step 6: Final answer
    x = 60,644.96

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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.