Home / 105,581.10-145,701.90-57,834.44

Finding the Fourth Proportional to 105,581.10, 145,701.90 and 57,834.44

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Solution

The fourth proportional to 105,581.10, 145,701.90 and 57,834.44 is: 79,811.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    105,581.10 : 145,701.90 = 57,834.44 : x
  2. Step 2: Convert to fraction form
    105,581.10/145,701.90 = 57,834.44/x
  3. Step 3: Cross multiply
    105,581.10x = 145,701.90 × 57,834.44
  4. Step 4: Simplify right side
    105,581.10x = 8,426,587,611.31
  5. Step 5: Solve for x
    x = 8,426,587,611.31/105,581.10
  6. Step 6: Final answer
    x = 79,811.51

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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.