Home / 74,899.05-112,397.18-43,309.05

Finding the Fourth Proportional to 74,899.05, 112,397.18 and 43,309.05

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Solution

The fourth proportional to 74,899.05, 112,397.18 and 43,309.05 is: 64,991.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,899.05 : 112,397.18 = 43,309.05 : x
  2. Step 2: Convert to fraction form
    74,899.05/112,397.18 = 43,309.05/x
  3. Step 3: Cross multiply
    74,899.05x = 112,397.18 × 43,309.05
  4. Step 4: Simplify right side
    74,899.05x = 4,867,814,871.93
  5. Step 5: Solve for x
    x = 4,867,814,871.93/74,899.05
  6. Step 6: Final answer
    x = 64,991.68

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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.