Home / 105,541.80-145,645.70-57,794.28

Finding the Fourth Proportional to 105,541.80, 145,645.70 and 57,794.28

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Solution

The fourth proportional to 105,541.80, 145,645.70 and 57,794.28 is: 79,755.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,541.80 : 145,645.70 = 57,794.28 : x
  2. Step 2: Convert to fraction form
    105,541.80/145,645.70 = 57,794.28/x
  3. Step 3: Cross multiply
    105,541.80x = 145,645.70 × 57,794.28
  4. Step 4: Simplify right side
    105,541.80x = 8,417,488,366.60
  5. Step 5: Solve for x
    x = 8,417,488,366.60/105,541.80
  6. Step 6: Final answer
    x = 79,755.02

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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.