Home / 81,127.53-121,451.63-59,926.77

Finding the Fourth Proportional to 81,127.53, 121,451.63 and 59,926.77

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Solution

The fourth proportional to 81,127.53, 121,451.63 and 59,926.77 is: 89,713.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,127.53 : 121,451.63 = 59,926.77 : x
  2. Step 2: Convert to fraction form
    81,127.53/121,451.63 = 59,926.77/x
  3. Step 3: Cross multiply
    81,127.53x = 121,451.63 × 59,926.77
  4. Step 4: Simplify right side
    81,127.53x = 7,278,203,597.50
  5. Step 5: Solve for x
    x = 7,278,203,597.50/81,127.53
  6. Step 6: Final answer
    x = 89,713.12

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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.