Home / 81,837.64-112,897.80-53,155.26

Finding the Fourth Proportional to 81,837.64, 112,897.80 and 53,155.26

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Solution

The fourth proportional to 81,837.64, 112,897.80 and 53,155.26 is: 73,329.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,837.64 : 112,897.80 = 53,155.26 : x
  2. Step 2: Convert to fraction form
    81,837.64/112,897.80 = 53,155.26/x
  3. Step 3: Cross multiply
    81,837.64x = 112,897.80 × 53,155.26
  4. Step 4: Simplify right side
    81,837.64x = 6,001,111,912.43
  5. Step 5: Solve for x
    x = 6,001,111,912.43/81,837.64
  6. Step 6: Final answer
    x = 73,329.48

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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.