Home / 105,370.09-145,411.87-57,622.41

Finding the Fourth Proportional to 105,370.09, 145,411.87 and 57,622.41

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Solution

The fourth proportional to 105,370.09, 145,411.87 and 57,622.41 is: 79,519.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,370.09 : 145,411.87 = 57,622.41 : x
  2. Step 2: Convert to fraction form
    105,370.09/145,411.87 = 57,622.41/x
  3. Step 3: Cross multiply
    105,370.09x = 145,411.87 × 57,622.41
  4. Step 4: Simplify right side
    105,370.09x = 8,378,982,247.95
  5. Step 5: Solve for x
    x = 8,378,982,247.95/105,370.09
  6. Step 6: Final answer
    x = 79,519.55

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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.