Home / 81,214.09-121,834.28-25,041.06

Finding the Fourth Proportional to 81,214.09, 121,834.28 and 25,041.06

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Solution

The fourth proportional to 81,214.09, 121,834.28 and 25,041.06 is: 37,565.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,214.09 : 121,834.28 = 25,041.06 : x
  2. Step 2: Convert to fraction form
    81,214.09/121,834.28 = 25,041.06/x
  3. Step 3: Cross multiply
    81,214.09x = 121,834.28 × 25,041.06
  4. Step 4: Simplify right side
    81,214.09x = 3,050,859,515.54
  5. Step 5: Solve for x
    x = 3,050,859,515.54/81,214.09
  6. Step 6: Final answer
    x = 37,565.64

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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.