Home / 57,009.06-78,663.69-31,853.70

Finding the Fourth Proportional to 57,009.06, 78,663.69 and 31,853.70

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Solution

The fourth proportional to 57,009.06, 78,663.69 and 31,853.70 is: 43,953.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,009.06 : 78,663.69 = 31,853.70 : x
  2. Step 2: Convert to fraction form
    57,009.06/78,663.69 = 31,853.70/x
  3. Step 3: Cross multiply
    57,009.06x = 78,663.69 × 31,853.70
  4. Step 4: Simplify right side
    57,009.06x = 2,505,729,582.15
  5. Step 5: Solve for x
    x = 2,505,729,582.15/57,009.06
  6. Step 6: Final answer
    x = 43,953.18

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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.