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Finding the Fourth Proportional to 85,553.82, 128,330.79 and 23,224.32

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Solution

The fourth proportional to 85,553.82, 128,330.79 and 23,224.32 is: 34,836.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,553.82 : 128,330.79 = 23,224.32 : x
  2. Step 2: Convert to fraction form
    85,553.82/128,330.79 = 23,224.32/x
  3. Step 3: Cross multiply
    85,553.82x = 128,330.79 × 23,224.32
  4. Step 4: Simplify right side
    85,553.82x = 2,980,395,332.81
  5. Step 5: Solve for x
    x = 2,980,395,332.81/85,553.82
  6. Step 6: Final answer
    x = 34,836.50

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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.