Home / 101,741.60-140,405.04-56,421.44

Finding the Fourth Proportional to 101,741.60, 140,405.04 and 56,421.44

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Solution

The fourth proportional to 101,741.60, 140,405.04 and 56,421.44 is: 77,862.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,741.60 : 140,405.04 = 56,421.44 : x
  2. Step 2: Convert to fraction form
    101,741.60/140,405.04 = 56,421.44/x
  3. Step 3: Cross multiply
    101,741.60x = 140,405.04 × 56,421.44
  4. Step 4: Simplify right side
    101,741.60x = 7,921,854,540.06
  5. Step 5: Solve for x
    x = 7,921,854,540.06/101,741.60
  6. Step 6: Final answer
    x = 77,862.49

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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.