Home / 57,113.59-85,679.56-19,664.45

Finding the Fourth Proportional to 57,113.59, 85,679.56 and 19,664.45

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Solution

The fourth proportional to 57,113.59, 85,679.56 and 19,664.45 is: 29,499.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,113.59 : 85,679.56 = 19,664.45 : x
  2. Step 2: Convert to fraction form
    57,113.59/85,679.56 = 19,664.45/x
  3. Step 3: Cross multiply
    57,113.59x = 85,679.56 × 19,664.45
  4. Step 4: Simplify right side
    57,113.59x = 1,684,841,423.64
  5. Step 5: Solve for x
    x = 1,684,841,423.64/57,113.59
  6. Step 6: Final answer
    x = 29,499.83

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.