Home / 57,402.08-86,103.28-17,421.39

Finding the Fourth Proportional to 57,402.08, 86,103.28 and 17,421.39

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Solution

The fourth proportional to 57,402.08, 86,103.28 and 17,421.39 is: 26,132.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,402.08 : 86,103.28 = 17,421.39 : x
  2. Step 2: Convert to fraction form
    57,402.08/86,103.28 = 17,421.39/x
  3. Step 3: Cross multiply
    57,402.08x = 86,103.28 × 17,421.39
  4. Step 4: Simplify right side
    57,402.08x = 1,500,038,821.16
  5. Step 5: Solve for x
    x = 1,500,038,821.16/57,402.08
  6. Step 6: Final answer
    x = 26,132.13

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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.