Home / 97,878.67-135,082.04-54,865.47

Finding the Fourth Proportional to 97,878.67, 135,082.04 and 54,865.47

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Solution

The fourth proportional to 97,878.67, 135,082.04 and 54,865.47 is: 75,719.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,878.67 : 135,082.04 = 54,865.47 : x
  2. Step 2: Convert to fraction form
    97,878.67/135,082.04 = 54,865.47/x
  3. Step 3: Cross multiply
    97,878.67x = 135,082.04 × 54,865.47
  4. Step 4: Simplify right side
    97,878.67x = 7,411,338,663.42
  5. Step 5: Solve for x
    x = 7,411,338,663.42/97,878.67
  6. Step 6: Final answer
    x = 75,719.65

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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.