Home / 52,761.12-72,809.70-28,887.28

Finding the Fourth Proportional to 52,761.12, 72,809.70 and 28,887.28

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Solution

The fourth proportional to 52,761.12, 72,809.70 and 28,887.28 is: 39,864.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,761.12 : 72,809.70 = 28,887.28 : x
  2. Step 2: Convert to fraction form
    52,761.12/72,809.70 = 28,887.28/x
  3. Step 3: Cross multiply
    52,761.12x = 72,809.70 × 28,887.28
  4. Step 4: Simplify right side
    52,761.12x = 2,103,273,900.26
  5. Step 5: Solve for x
    x = 2,103,273,900.26/52,761.12
  6. Step 6: Final answer
    x = 39,864.09

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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.