Home / 56,921.72-85,442.70-31,983.08

Finding the Fourth Proportional to 56,921.72, 85,442.70 and 31,983.08

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Solution

The fourth proportional to 56,921.72, 85,442.70 and 31,983.08 is: 48,008.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,921.72 : 85,442.70 = 31,983.08 : x
  2. Step 2: Convert to fraction form
    56,921.72/85,442.70 = 31,983.08/x
  3. Step 3: Cross multiply
    56,921.72x = 85,442.70 × 31,983.08
  4. Step 4: Simplify right side
    56,921.72x = 2,732,720,709.52
  5. Step 5: Solve for x
    x = 2,732,720,709.52/56,921.72
  6. Step 6: Final answer
    x = 48,008.40

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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.