Home / 89,127.78-122,976.39-50,875.12

Finding the Fourth Proportional to 89,127.78, 122,976.39 and 50,875.12

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Solution

The fourth proportional to 89,127.78, 122,976.39 and 50,875.12 is: 70,196.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,127.78 : 122,976.39 = 50,875.12 : x
  2. Step 2: Convert to fraction form
    89,127.78/122,976.39 = 50,875.12/x
  3. Step 3: Cross multiply
    89,127.78x = 122,976.39 × 50,875.12
  4. Step 4: Simplify right side
    89,127.78x = 6,256,438,598.42
  5. Step 5: Solve for x
    x = 6,256,438,598.42/89,127.78
  6. Step 6: Final answer
    x = 70,196.28

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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.