Home / 55,357.02-76,391.99-31,157.87

Finding the Fourth Proportional to 55,357.02, 76,391.99 and 31,157.87

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Solution

The fourth proportional to 55,357.02, 76,391.99 and 31,157.87 is: 42,997.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,357.02 : 76,391.99 = 31,157.87 : x
  2. Step 2: Convert to fraction form
    55,357.02/76,391.99 = 31,157.87/x
  3. Step 3: Cross multiply
    55,357.02x = 76,391.99 × 31,157.87
  4. Step 4: Simplify right side
    55,357.02x = 2,380,211,184.92
  5. Step 5: Solve for x
    x = 2,380,211,184.92/55,357.02
  6. Step 6: Final answer
    x = 42,997.46

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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.