Home / 57,274.16-85,890.64-19,824.08

Finding the Fourth Proportional to 57,274.16, 85,890.64 and 19,824.08

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Solution

The fourth proportional to 57,274.16, 85,890.64 and 19,824.08 is: 29,728.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,274.16 : 85,890.64 = 19,824.08 : x
  2. Step 2: Convert to fraction form
    57,274.16/85,890.64 = 19,824.08/x
  3. Step 3: Cross multiply
    57,274.16x = 85,890.64 × 19,824.08
  4. Step 4: Simplify right side
    57,274.16x = 1,702,702,918.61
  5. Step 5: Solve for x
    x = 1,702,702,918.61/57,274.16
  6. Step 6: Final answer
    x = 29,728.99

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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.