Home / 101,344.21-139,854.09-56,023.35

Finding the Fourth Proportional to 101,344.21, 139,854.09 and 56,023.35

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Solution

The fourth proportional to 101,344.21, 139,854.09 and 56,023.35 is: 77,311.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,344.21 : 139,854.09 = 56,023.35 : x
  2. Step 2: Convert to fraction form
    101,344.21/139,854.09 = 56,023.35/x
  3. Step 3: Cross multiply
    101,344.21x = 139,854.09 × 56,023.35
  4. Step 4: Simplify right side
    101,344.21x = 7,835,094,318.64
  5. Step 5: Solve for x
    x = 7,835,094,318.64/101,344.21
  6. Step 6: Final answer
    x = 77,311.71

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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.