Home / 52,739.19-72,780.11-28,865.99

Finding the Fourth Proportional to 52,739.19, 72,780.11 and 28,865.99

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Solution

The fourth proportional to 52,739.19, 72,780.11 and 28,865.99 is: 39,835.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,739.19 : 72,780.11 = 28,865.99 : x
  2. Step 2: Convert to fraction form
    52,739.19/72,780.11 = 28,865.99/x
  3. Step 3: Cross multiply
    52,739.19x = 72,780.11 × 28,865.99
  4. Step 4: Simplify right side
    52,739.19x = 2,100,869,419.23
  5. Step 5: Solve for x
    x = 2,100,869,419.23/52,739.19
  6. Step 6: Final answer
    x = 39,835.07

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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.