Home / 57,233.24-78,980.40-31,739.72

Finding the Fourth Proportional to 57,233.24, 78,980.40 and 31,739.72

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Solution

The fourth proportional to 57,233.24, 78,980.40 and 31,739.72 is: 43,800.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,233.24 : 78,980.40 = 31,739.72 : x
  2. Step 2: Convert to fraction form
    57,233.24/78,980.40 = 31,739.72/x
  3. Step 3: Cross multiply
    57,233.24x = 78,980.40 × 31,739.72
  4. Step 4: Simplify right side
    57,233.24x = 2,506,815,781.49
  5. Step 5: Solve for x
    x = 2,506,815,781.49/57,233.24
  6. Step 6: Final answer
    x = 43,800.00

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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.