Home / 56,781.23-78,358.16-32,912.51

Finding the Fourth Proportional to 56,781.23, 78,358.16 and 32,912.51

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Solution

The fourth proportional to 56,781.23, 78,358.16 and 32,912.51 is: 45,419.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,781.23 : 78,358.16 = 32,912.51 : x
  2. Step 2: Convert to fraction form
    56,781.23/78,358.16 = 32,912.51/x
  3. Step 3: Cross multiply
    56,781.23x = 78,358.16 × 32,912.51
  4. Step 4: Simplify right side
    56,781.23x = 2,578,963,560.02
  5. Step 5: Solve for x
    x = 2,578,963,560.02/56,781.23
  6. Step 6: Final answer
    x = 45,419.30

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.