Home / 52,659.12-72,635.64-31,422

Finding the Fourth Proportional to 52,659.12, 72,635.64 and 31,422

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Solution

The fourth proportional to 52,659.12, 72,635.64 and 31,422 is: 43,342.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,659.12 : 72,635.64 = 31,422 : x
  2. Step 2: Convert to fraction form
    52,659.12/72,635.64 = 31,422/x
  3. Step 3: Cross multiply
    52,659.12x = 72,635.64 × 31,422
  4. Step 4: Simplify right side
    52,659.12x = 2,282,357,080.08
  5. Step 5: Solve for x
    x = 2,282,357,080.08/52,659.12
  6. Step 6: Final answer
    x = 43,342.10

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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.