Home / 101,015.60-151,540.40-30,878.52

Finding the Fourth Proportional to 101,015.60, 151,540.40 and 30,878.52

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Solution

The fourth proportional to 101,015.60, 151,540.40 and 30,878.52 is: 46,322.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,015.60 : 151,540.40 = 30,878.52 : x
  2. Step 2: Convert to fraction form
    101,015.60/151,540.40 = 30,878.52/x
  3. Step 3: Cross multiply
    101,015.60x = 151,540.40 × 30,878.52
  4. Step 4: Simplify right side
    101,015.60x = 4,679,343,272.21
  5. Step 5: Solve for x
    x = 4,679,343,272.21/101,015.60
  6. Step 6: Final answer
    x = 46,322.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.