Home / 43,269.85-64,760.78-31,389.85

Finding the Fourth Proportional to 43,269.85, 64,760.78 and 31,389.85

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Solution

The fourth proportional to 43,269.85, 64,760.78 and 31,389.85 is: 46,980.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,269.85 : 64,760.78 = 31,389.85 : x
  2. Step 2: Convert to fraction form
    43,269.85/64,760.78 = 31,389.85/x
  3. Step 3: Cross multiply
    43,269.85x = 64,760.78 × 31,389.85
  4. Step 4: Simplify right side
    43,269.85x = 2,032,831,013.13
  5. Step 5: Solve for x
    x = 2,032,831,013.13/43,269.85
  6. Step 6: Final answer
    x = 46,980.31

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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.