Home / 45,587.13-68,355.05-31,372.31

Finding the Fourth Proportional to 45,587.13, 68,355.05 and 31,372.31

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Solution

The fourth proportional to 45,587.13, 68,355.05 and 31,372.31 is: 47,040.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,587.13 : 68,355.05 = 31,372.31 : x
  2. Step 2: Convert to fraction form
    45,587.13/68,355.05 = 31,372.31/x
  3. Step 3: Cross multiply
    45,587.13x = 68,355.05 × 31,372.31
  4. Step 4: Simplify right side
    45,587.13x = 2,144,455,320.03
  5. Step 5: Solve for x
    x = 2,144,455,320.03/45,587.13
  6. Step 6: Final answer
    x = 47,040.81

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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.