Home / 97,558.40-134,628.64-55,118.72

Finding the Fourth Proportional to 97,558.40, 134,628.64 and 55,118.72

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Solution

The fourth proportional to 97,558.40, 134,628.64 and 55,118.72 is: 76,062.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,558.40 : 134,628.64 = 55,118.72 : x
  2. Step 2: Convert to fraction form
    97,558.40/134,628.64 = 55,118.72/x
  3. Step 3: Cross multiply
    97,558.40x = 134,628.64 × 55,118.72
  4. Step 4: Simplify right side
    97,558.40x = 7,420,558,312.14
  5. Step 5: Solve for x
    x = 7,420,558,312.14/97,558.40
  6. Step 6: Final answer
    x = 76,062.73

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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.