Home / 56,983.85-78,637.52-31,489.50

Finding the Fourth Proportional to 56,983.85, 78,637.52 and 31,489.50

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Solution

The fourth proportional to 56,983.85, 78,637.52 and 31,489.50 is: 43,455.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,983.85 : 78,637.52 = 31,489.50 : x
  2. Step 2: Convert to fraction form
    56,983.85/78,637.52 = 31,489.50/x
  3. Step 3: Cross multiply
    56,983.85x = 78,637.52 × 31,489.50
  4. Step 4: Simplify right side
    56,983.85x = 2,476,256,382.53
  5. Step 5: Solve for x
    x = 2,476,256,382.53/56,983.85
  6. Step 6: Final answer
    x = 43,455.41

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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.