Home / 80,904.46-121,356.59-21,740.13

Finding the Fourth Proportional to 80,904.46, 121,356.59 and 21,740.13

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Solution

The fourth proportional to 80,904.46, 121,356.59 and 21,740.13 is: 32,610.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,904.46 : 121,356.59 = 21,740.13 : x
  2. Step 2: Convert to fraction form
    80,904.46/121,356.59 = 21,740.13/x
  3. Step 3: Cross multiply
    80,904.46x = 121,356.59 × 21,740.13
  4. Step 4: Simplify right side
    80,904.46x = 2,638,308,023.69
  5. Step 5: Solve for x
    x = 2,638,308,023.69/80,904.46
  6. Step 6: Final answer
    x = 32,610.17

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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.