Home / 91,100.08-125,718.80-50,816.48

Finding the Fourth Proportional to 91,100.08, 125,718.80 and 50,816.48

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Solution

The fourth proportional to 91,100.08, 125,718.80 and 50,816.48 is: 70,127.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,100.08 : 125,718.80 = 50,816.48 : x
  2. Step 2: Convert to fraction form
    91,100.08/125,718.80 = 50,816.48/x
  3. Step 3: Cross multiply
    91,100.08x = 125,718.80 × 50,816.48
  4. Step 4: Simplify right side
    91,100.08x = 6,388,586,885.82
  5. Step 5: Solve for x
    x = 6,388,586,885.82/91,100.08
  6. Step 6: Final answer
    x = 70,127.13

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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.