Home / 105,327.92-145,351.62-57,581.12

Finding the Fourth Proportional to 105,327.92, 145,351.62 and 57,581.12

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Solution

The fourth proportional to 105,327.92, 145,351.62 and 57,581.12 is: 79,461.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,327.92 : 145,351.62 = 57,581.12 : x
  2. Step 2: Convert to fraction form
    105,327.92/145,351.62 = 57,581.12/x
  3. Step 3: Cross multiply
    105,327.92x = 145,351.62 × 57,581.12
  4. Step 4: Simplify right side
    105,327.92x = 8,369,509,073.41
  5. Step 5: Solve for x
    x = 8,369,509,073.41/105,327.92
  6. Step 6: Final answer
    x = 79,461.45

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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.