Home / 105,575.42-145,694.13-57,829.56

Finding the Fourth Proportional to 105,575.42, 145,694.13 and 57,829.56

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Solution

The fourth proportional to 105,575.42, 145,694.13 and 57,829.56 is: 79,804.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,575.42 : 145,694.13 = 57,829.56 : x
  2. Step 2: Convert to fraction form
    105,575.42/145,694.13 = 57,829.56/x
  3. Step 3: Cross multiply
    105,575.42x = 145,694.13 × 57,829.56
  4. Step 4: Simplify right side
    105,575.42x = 8,425,427,432.48
  5. Step 5: Solve for x
    x = 8,425,427,432.48/105,575.42
  6. Step 6: Final answer
    x = 79,804.82

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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.