Home / 85,322.13-127,883.53-64,194.28

Finding the Fourth Proportional to 85,322.13, 127,883.53 and 64,194.28

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Solution

The fourth proportional to 85,322.13, 127,883.53 and 64,194.28 is: 96,216.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,322.13 : 127,883.53 = 64,194.28 : x
  2. Step 2: Convert to fraction form
    85,322.13/127,883.53 = 64,194.28/x
  3. Step 3: Cross multiply
    85,322.13x = 127,883.53 × 64,194.28
  4. Step 4: Simplify right side
    85,322.13x = 8,209,391,132.21
  5. Step 5: Solve for x
    x = 8,209,391,132.21/85,322.13
  6. Step 6: Final answer
    x = 96,216.43

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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.