Home / 92,996.39-128,313.07-66,129.10

Finding the Fourth Proportional to 92,996.39, 128,313.07 and 66,129.10

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Solution

The fourth proportional to 92,996.39, 128,313.07 and 66,129.10 is: 91,242.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,996.39 : 128,313.07 = 66,129.10 : x
  2. Step 2: Convert to fraction form
    92,996.39/128,313.07 = 66,129.10/x
  3. Step 3: Cross multiply
    92,996.39x = 128,313.07 × 66,129.10
  4. Step 4: Simplify right side
    92,996.39x = 8,485,227,351.23
  5. Step 5: Solve for x
    x = 8,485,227,351.23/92,996.39
  6. Step 6: Final answer
    x = 91,242.54

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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.