Home / 56,645.12-78,171.84-31,496.32

Finding the Fourth Proportional to 56,645.12, 78,171.84 and 31,496.32

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Solution

The fourth proportional to 56,645.12, 78,171.84 and 31,496.32 is: 43,465.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,645.12 : 78,171.84 = 31,496.32 : x
  2. Step 2: Convert to fraction form
    56,645.12/78,171.84 = 31,496.32/x
  3. Step 3: Cross multiply
    56,645.12x = 78,171.84 × 31,496.32
  4. Step 4: Simplify right side
    56,645.12x = 2,462,125,287.63
  5. Step 5: Solve for x
    x = 2,462,125,287.63/56,645.12
  6. Step 6: Final answer
    x = 43,465.80

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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.