Home / 57,008.64-78,672.04-31,858.14

Finding the Fourth Proportional to 57,008.64, 78,672.04 and 31,858.14

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Solution

The fourth proportional to 57,008.64, 78,672.04 and 31,858.14 is: 43,964.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,008.64 : 78,672.04 = 31,858.14 : x
  2. Step 2: Convert to fraction form
    57,008.64/78,672.04 = 31,858.14/x
  3. Step 3: Cross multiply
    57,008.64x = 78,672.04 × 31,858.14
  4. Step 4: Simplify right side
    57,008.64x = 2,506,344,864.41
  5. Step 5: Solve for x
    x = 2,506,344,864.41/57,008.64
  6. Step 6: Final answer
    x = 43,964.30

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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.