Home / 69,107.05-103,507.44-56,407.87

Finding the Fourth Proportional to 69,107.05, 103,507.44 and 56,407.87

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Solution

The fourth proportional to 69,107.05, 103,507.44 and 56,407.87 is: 84,486.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,107.05 : 103,507.44 = 56,407.87 : x
  2. Step 2: Convert to fraction form
    69,107.05/103,507.44 = 56,407.87/x
  3. Step 3: Cross multiply
    69,107.05x = 103,507.44 × 56,407.87
  4. Step 4: Simplify right side
    69,107.05x = 5,838,634,219.55
  5. Step 5: Solve for x
    x = 5,838,634,219.55/69,107.05
  6. Step 6: Final answer
    x = 84,486.81

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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.