Home / 56,385.92-77,812.56-31,235.42

Finding the Fourth Proportional to 56,385.92, 77,812.56 and 31,235.42

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Solution

The fourth proportional to 56,385.92, 77,812.56 and 31,235.42 is: 43,104.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,385.92 : 77,812.56 = 31,235.42 : x
  2. Step 2: Convert to fraction form
    56,385.92/77,812.56 = 31,235.42/x
  3. Step 3: Cross multiply
    56,385.92x = 77,812.56 × 31,235.42
  4. Step 4: Simplify right side
    56,385.92x = 2,430,507,992.88
  5. Step 5: Solve for x
    x = 2,430,507,992.88/56,385.92
  6. Step 6: Final answer
    x = 43,104.87

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1.5x scale

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.