Home / 52,743.12-72,785.64-28,869.96

Finding the Fourth Proportional to 52,743.12, 72,785.64 and 28,869.96

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Solution

The fourth proportional to 52,743.12, 72,785.64 and 28,869.96 is: 39,840.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,743.12 : 72,785.64 = 28,869.96 : x
  2. Step 2: Convert to fraction form
    52,743.12/72,785.64 = 28,869.96/x
  3. Step 3: Cross multiply
    52,743.12x = 72,785.64 × 28,869.96
  4. Step 4: Simplify right side
    52,743.12x = 2,101,318,515.37
  5. Step 5: Solve for x
    x = 2,101,318,515.37/52,743.12
  6. Step 6: Final answer
    x = 39,840.62

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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.