Home / 90,309.13-135,551.18-43,594.81

Finding the Fourth Proportional to 90,309.13, 135,551.18 and 43,594.81

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Solution

The fourth proportional to 90,309.13, 135,551.18 and 43,594.81 is: 65,434.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,309.13 : 135,551.18 = 43,594.81 : x
  2. Step 2: Convert to fraction form
    90,309.13/135,551.18 = 43,594.81/x
  3. Step 3: Cross multiply
    90,309.13x = 135,551.18 × 43,594.81
  4. Step 4: Simplify right side
    90,309.13x = 5,909,327,719.40
  5. Step 5: Solve for x
    x = 5,909,327,719.40/90,309.13
  6. Step 6: Final answer
    x = 65,434.44

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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.