Home / 97,790.61-134,939.87-54,764.12

Finding the Fourth Proportional to 97,790.61, 134,939.87 and 54,764.12

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Solution

The fourth proportional to 97,790.61, 134,939.87 and 54,764.12 is: 75,568.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,790.61 : 134,939.87 = 54,764.12 : x
  2. Step 2: Convert to fraction form
    97,790.61/134,939.87 = 54,764.12/x
  3. Step 3: Cross multiply
    97,790.61x = 134,939.87 × 54,764.12
  4. Step 4: Simplify right side
    97,790.61x = 7,389,862,284.94
  5. Step 5: Solve for x
    x = 7,389,862,284.94/97,790.61
  6. Step 6: Final answer
    x = 75,568.22

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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.