Home / 81,332.40-121,984.76-22,154.23

Finding the Fourth Proportional to 81,332.40, 121,984.76 and 22,154.23

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Solution

The fourth proportional to 81,332.40, 121,984.76 and 22,154.23 is: 33,227.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,332.40 : 121,984.76 = 22,154.23 : x
  2. Step 2: Convert to fraction form
    81,332.40/121,984.76 = 22,154.23/x
  3. Step 3: Cross multiply
    81,332.40x = 121,984.76 × 22,154.23
  4. Step 4: Simplify right side
    81,332.40x = 2,702,477,708.84
  5. Step 5: Solve for x
    x = 2,702,477,708.84/81,332.40
  6. Step 6: Final answer
    x = 33,227.57

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1.5x scale

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.