Home / 86,745.39-119,741.67-56,538.06

Finding the Fourth Proportional to 86,745.39, 119,741.67 and 56,538.06

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Solution

The fourth proportional to 86,745.39, 119,741.67 and 56,538.06 is: 78,044.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,745.39 : 119,741.67 = 56,538.06 : x
  2. Step 2: Convert to fraction form
    86,745.39/119,741.67 = 56,538.06/x
  3. Step 3: Cross multiply
    86,745.39x = 119,741.67 × 56,538.06
  4. Step 4: Simplify right side
    86,745.39x = 6,769,961,722.96
  5. Step 5: Solve for x
    x = 6,769,961,722.96/86,745.39
  6. Step 6: Final answer
    x = 78,044.05

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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.