Home / 105,572.41-145,689.99-57,826.56

Finding the Fourth Proportional to 105,572.41, 145,689.99 and 57,826.56

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Solution

The fourth proportional to 105,572.41, 145,689.99 and 57,826.56 is: 79,800.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,572.41 : 145,689.99 = 57,826.56 : x
  2. Step 2: Convert to fraction form
    105,572.41/145,689.99 = 57,826.56/x
  3. Step 3: Cross multiply
    105,572.41x = 145,689.99 × 57,826.56
  4. Step 4: Simplify right side
    105,572.41x = 8,424,750,783.39
  5. Step 5: Solve for x
    x = 8,424,750,783.39/105,572.41
  6. Step 6: Final answer
    x = 79,800.68

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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.