Home / 85,548.32-128,322.54-23,218.82

Finding the Fourth Proportional to 85,548.32, 128,322.54 and 23,218.82

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Solution

The fourth proportional to 85,548.32, 128,322.54 and 23,218.82 is: 34,828.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,548.32 : 128,322.54 = 23,218.82 : x
  2. Step 2: Convert to fraction form
    85,548.32/128,322.54 = 23,218.82/x
  3. Step 3: Cross multiply
    85,548.32x = 128,322.54 × 23,218.82
  4. Step 4: Simplify right side
    85,548.32x = 2,979,497,958.20
  5. Step 5: Solve for x
    x = 2,979,497,958.20/85,548.32
  6. Step 6: Final answer
    x = 34,828.25

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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.