Home / 97,938.72-135,147.42-57,646.08

Finding the Fourth Proportional to 97,938.72, 135,147.42 and 57,646.08

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Solution

The fourth proportional to 97,938.72, 135,147.42 and 57,646.08 is: 79,546.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,938.72 : 135,147.42 = 57,646.08 : x
  2. Step 2: Convert to fraction form
    97,938.72/135,147.42 = 57,646.08/x
  3. Step 3: Cross multiply
    97,938.72x = 135,147.42 × 57,646.08
  4. Step 4: Simplify right side
    97,938.72x = 7,790,718,985.11
  5. Step 5: Solve for x
    x = 7,790,718,985.11/97,938.72
  6. Step 6: Final answer
    x = 79,546.87

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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.