Home / 105,576.55-145,696.13-57,829.75

Finding the Fourth Proportional to 105,576.55, 145,696.13 and 57,829.75

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Solution

The fourth proportional to 105,576.55, 145,696.13 and 57,829.75 is: 79,805.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,576.55 : 145,696.13 = 57,829.75 : x
  2. Step 2: Convert to fraction form
    105,576.55/145,696.13 = 57,829.75/x
  3. Step 3: Cross multiply
    105,576.55x = 145,696.13 × 57,829.75
  4. Step 4: Simplify right side
    105,576.55x = 8,425,570,773.87
  5. Step 5: Solve for x
    x = 8,425,570,773.87/105,576.55
  6. Step 6: Final answer
    x = 79,805.32

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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.