Home / 98,571.39-136,028.38-56,129.92

Finding the Fourth Proportional to 98,571.39, 136,028.38 and 56,129.92

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Solution

The fourth proportional to 98,571.39, 136,028.38 and 56,129.92 is: 77,459.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    98,571.39 : 136,028.38 = 56,129.92 : x
  2. Step 2: Convert to fraction form
    98,571.39/136,028.38 = 56,129.92/x
  3. Step 3: Cross multiply
    98,571.39x = 136,028.38 × 56,129.92
  4. Step 4: Simplify right side
    98,571.39x = 7,635,261,711.98
  5. Step 5: Solve for x
    x = 7,635,261,711.98/98,571.39
  6. Step 6: Final answer
    x = 77,459.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.