Home / 55,253.77-82,918.92-21,970.40

Finding the Fourth Proportional to 55,253.77, 82,918.92 and 21,970.40

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Solution

The fourth proportional to 55,253.77, 82,918.92 and 21,970.40 is: 32,970.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,253.77 : 82,918.92 = 21,970.40 : x
  2. Step 2: Convert to fraction form
    55,253.77/82,918.92 = 21,970.40/x
  3. Step 3: Cross multiply
    55,253.77x = 82,918.92 × 21,970.40
  4. Step 4: Simplify right side
    55,253.77x = 1,821,761,507.76
  5. Step 5: Solve for x
    x = 1,821,761,507.76/55,253.77
  6. Step 6: Final answer
    x = 32,970.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.