Home / 77,561.81-116,367.80-38,091.25

Finding the Fourth Proportional to 77,561.81, 116,367.80 and 38,091.25

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Solution

The fourth proportional to 77,561.81, 116,367.80 and 38,091.25 is: 57,149.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,561.81 : 116,367.80 = 38,091.25 : x
  2. Step 2: Convert to fraction form
    77,561.81/116,367.80 = 38,091.25/x
  3. Step 3: Cross multiply
    77,561.81x = 116,367.80 × 38,091.25
  4. Step 4: Simplify right side
    77,561.81x = 4,432,594,189.45
  5. Step 5: Solve for x
    x = 4,432,594,189.45/77,561.81
  6. Step 6: Final answer
    x = 57,149.18

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.