Home / 53,115.51-79,654.68-15,665.64

Finding the Fourth Proportional to 53,115.51, 79,654.68 and 15,665.64

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Solution

The fourth proportional to 53,115.51, 79,654.68 and 15,665.64 is: 23,492.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,115.51 : 79,654.68 = 15,665.64 : x
  2. Step 2: Convert to fraction form
    53,115.51/79,654.68 = 15,665.64/x
  3. Step 3: Cross multiply
    53,115.51x = 79,654.68 × 15,665.64
  4. Step 4: Simplify right side
    53,115.51x = 1,247,841,541.20
  5. Step 5: Solve for x
    x = 1,247,841,541.20/53,115.51
  6. Step 6: Final answer
    x = 23,492.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.