Home / 97,727.85-134,878.91-61,921.19

Finding the Fourth Proportional to 97,727.85, 134,878.91 and 61,921.19

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Solution

The fourth proportional to 97,727.85, 134,878.91 and 61,921.19 is: 85,460.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,727.85 : 134,878.91 = 61,921.19 : x
  2. Step 2: Convert to fraction form
    97,727.85/134,878.91 = 61,921.19/x
  3. Step 3: Cross multiply
    97,727.85x = 134,878.91 × 61,921.19
  4. Step 4: Simplify right side
    97,727.85x = 8,351,862,640.69
  5. Step 5: Solve for x
    x = 8,351,862,640.69/97,727.85
  6. Step 6: Final answer
    x = 85,460.42

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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.