Home / 56,808.79-78,392.55-31,313.75

Finding the Fourth Proportional to 56,808.79, 78,392.55 and 31,313.75

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Solution

The fourth proportional to 56,808.79, 78,392.55 and 31,313.75 is: 43,211.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,808.79 : 78,392.55 = 31,313.75 : x
  2. Step 2: Convert to fraction form
    56,808.79/78,392.55 = 31,313.75/x
  3. Step 3: Cross multiply
    56,808.79x = 78,392.55 × 31,313.75
  4. Step 4: Simplify right side
    56,808.79x = 2,454,764,712.56
  5. Step 5: Solve for x
    x = 2,454,764,712.56/56,808.79
  6. Step 6: Final answer
    x = 43,211.00

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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.