Home / 57,008.58-78,671.26-31,858.08

Finding the Fourth Proportional to 57,008.58, 78,671.26 and 31,858.08

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Solution

The fourth proportional to 57,008.58, 78,671.26 and 31,858.08 is: 43,963.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,008.58 : 78,671.26 = 31,858.08 : x
  2. Step 2: Convert to fraction form
    57,008.58/78,671.26 = 31,858.08/x
  3. Step 3: Cross multiply
    57,008.58x = 78,671.26 × 31,858.08
  4. Step 4: Simplify right side
    57,008.58x = 2,506,315,294.78
  5. Step 5: Solve for x
    x = 2,506,315,294.78/57,008.58
  6. Step 6: Final answer
    x = 43,963.83

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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.