Home / 85,231.15-127,883.63-45,742.13

Finding the Fourth Proportional to 85,231.15, 127,883.63 and 45,742.13

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Solution

The fourth proportional to 85,231.15, 127,883.63 and 45,742.13 is: 68,633.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,231.15 : 127,883.63 = 45,742.13 : x
  2. Step 2: Convert to fraction form
    85,231.15/127,883.63 = 45,742.13/x
  3. Step 3: Cross multiply
    85,231.15x = 127,883.63 × 45,742.13
  4. Step 4: Simplify right side
    85,231.15x = 5,849,669,628.33
  5. Step 5: Solve for x
    x = 5,849,669,628.33/85,231.15
  6. Step 6: Final answer
    x = 68,633.00

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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.