Home / 81,839.64-112,900.56-53,157.26

Finding the Fourth Proportional to 81,839.64, 112,900.56 and 53,157.26

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Solution

The fourth proportional to 81,839.64, 112,900.56 and 53,157.26 is: 73,332.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,839.64 : 112,900.56 = 53,157.26 : x
  2. Step 2: Convert to fraction form
    81,839.64/112,900.56 = 53,157.26/x
  3. Step 3: Cross multiply
    81,839.64x = 112,900.56 × 53,157.26
  4. Step 4: Simplify right side
    81,839.64x = 6,001,484,422.07
  5. Step 5: Solve for x
    x = 6,001,484,422.07/81,839.64
  6. Step 6: Final answer
    x = 73,332.24

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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.