Home / 57,139.16-78,860.76-35,632.41

Finding the Fourth Proportional to 57,139.16, 78,860.76 and 35,632.41

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Solution

The fourth proportional to 57,139.16, 78,860.76 and 35,632.41 is: 49,178.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,139.16 : 78,860.76 = 35,632.41 : x
  2. Step 2: Convert to fraction form
    57,139.16/78,860.76 = 35,632.41/x
  3. Step 3: Cross multiply
    57,139.16x = 78,860.76 × 35,632.41
  4. Step 4: Simplify right side
    57,139.16x = 2,809,998,503.88
  5. Step 5: Solve for x
    x = 2,809,998,503.88/57,139.16
  6. Step 6: Final answer
    x = 49,178.16

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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.