Home / 88,051.59-121,563.56-57,890.43

Finding the Fourth Proportional to 88,051.59, 121,563.56 and 57,890.43

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Solution

The fourth proportional to 88,051.59, 121,563.56 and 57,890.43 is: 79,923.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,051.59 : 121,563.56 = 57,890.43 : x
  2. Step 2: Convert to fraction form
    88,051.59/121,563.56 = 57,890.43/x
  3. Step 3: Cross multiply
    88,051.59x = 121,563.56 × 57,890.43
  4. Step 4: Simplify right side
    88,051.59x = 7,037,366,471.28
  5. Step 5: Solve for x
    x = 7,037,366,471.28/88,051.59
  6. Step 6: Final answer
    x = 79,923.22

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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.