Home / 52,781.16-72,835.22-28,907.32

Finding the Fourth Proportional to 52,781.16, 72,835.22 and 28,907.32

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Solution

The fourth proportional to 52,781.16, 72,835.22 and 28,907.32 is: 39,890.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,781.16 : 72,835.22 = 28,907.32 : x
  2. Step 2: Convert to fraction form
    52,781.16/72,835.22 = 28,907.32/x
  3. Step 3: Cross multiply
    52,781.16x = 72,835.22 × 28,907.32
  4. Step 4: Simplify right side
    52,781.16x = 2,105,471,011.81
  5. Step 5: Solve for x
    x = 2,105,471,011.81/52,781.16
  6. Step 6: Final answer
    x = 39,890.58

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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.