Home / 43,487.40-65,137.34-29,369.78

Finding the Fourth Proportional to 43,487.40, 65,137.34 and 29,369.78

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Solution

The fourth proportional to 43,487.40, 65,137.34 and 29,369.78 is: 43,991.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,487.40 : 65,137.34 = 29,369.78 : x
  2. Step 2: Convert to fraction form
    43,487.40/65,137.34 = 29,369.78/x
  3. Step 3: Cross multiply
    43,487.40x = 65,137.34 × 29,369.78
  4. Step 4: Simplify right side
    43,487.40x = 1,913,069,345.59
  5. Step 5: Solve for x
    x = 1,913,069,345.59/43,487.40
  6. Step 6: Final answer
    x = 43,991.35

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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.