Home / 57,020.02-78,687.93-31,868.98

Finding the Fourth Proportional to 57,020.02, 78,687.93 and 31,868.98

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Solution

The fourth proportional to 57,020.02, 78,687.93 and 31,868.98 is: 43,979.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,020.02 : 78,687.93 = 31,868.98 : x
  2. Step 2: Convert to fraction form
    57,020.02/78,687.93 = 31,868.98/x
  3. Step 3: Cross multiply
    57,020.02x = 78,687.93 × 31,868.98
  4. Step 4: Simplify right side
    57,020.02x = 2,507,704,067.41
  5. Step 5: Solve for x
    x = 2,507,704,067.41/57,020.02
  6. Step 6: Final answer
    x = 43,979.36

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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.