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Finding the Fourth Proportional to 90,599.57, 135,871.65 and 43,189.65

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Solution

The fourth proportional to 90,599.57, 135,871.65 and 43,189.65 is: 64,771.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,599.57 : 135,871.65 = 43,189.65 : x
  2. Step 2: Convert to fraction form
    90,599.57/135,871.65 = 43,189.65/x
  3. Step 3: Cross multiply
    90,599.57x = 135,871.65 × 43,189.65
  4. Step 4: Simplify right side
    90,599.57x = 5,868,249,008.42
  5. Step 5: Solve for x
    x = 5,868,249,008.42/90,599.57
  6. Step 6: Final answer
    x = 64,771.27

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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.