Home / 55,142.87-82,741.65-21,862.19

Finding the Fourth Proportional to 55,142.87, 82,741.65 and 21,862.19

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Solution

The fourth proportional to 55,142.87, 82,741.65 and 21,862.19 is: 32,804.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,142.87 : 82,741.65 = 21,862.19 : x
  2. Step 2: Convert to fraction form
    55,142.87/82,741.65 = 21,862.19/x
  3. Step 3: Cross multiply
    55,142.87x = 82,741.65 × 21,862.19
  4. Step 4: Simplify right side
    55,142.87x = 1,808,913,563.90
  5. Step 5: Solve for x
    x = 1,808,913,563.90/55,142.87
  6. Step 6: Final answer
    x = 32,804.13

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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.