Home / 91,041.77-125,628.57-55,229.65

Finding the Fourth Proportional to 91,041.77, 125,628.57 and 55,229.65

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Solution

The fourth proportional to 91,041.77, 125,628.57 and 55,229.65 is: 76,211.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,041.77 : 125,628.57 = 55,229.65 : x
  2. Step 2: Convert to fraction form
    91,041.77/125,628.57 = 55,229.65/x
  3. Step 3: Cross multiply
    91,041.77x = 125,628.57 × 55,229.65
  4. Step 4: Simplify right side
    91,041.77x = 6,938,421,637.03
  5. Step 5: Solve for x
    x = 6,938,421,637.03/91,041.77
  6. Step 6: Final answer
    x = 76,211.41

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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.