Home / 52,739.30-72,815.48-31,235.96

Finding the Fourth Proportional to 52,739.30, 72,815.48 and 31,235.96

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Solution

The fourth proportional to 52,739.30, 72,815.48 and 31,235.96 is: 43,126.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,739.30 : 72,815.48 = 31,235.96 : x
  2. Step 2: Convert to fraction form
    52,739.30/72,815.48 = 31,235.96/x
  3. Step 3: Cross multiply
    52,739.30x = 72,815.48 × 31,235.96
  4. Step 4: Simplify right side
    52,739.30x = 2,274,461,446.52
  5. Step 5: Solve for x
    x = 2,274,461,446.52/52,739.30
  6. Step 6: Final answer
    x = 43,126.50

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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.