Home / 53,988.85-81,010.62-36,421.78

Finding the Fourth Proportional to 53,988.85, 81,010.62 and 36,421.78

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Solution

The fourth proportional to 53,988.85, 81,010.62 and 36,421.78 is: 54,651.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,988.85 : 81,010.62 = 36,421.78 : x
  2. Step 2: Convert to fraction form
    53,988.85/81,010.62 = 36,421.78/x
  3. Step 3: Cross multiply
    53,988.85x = 81,010.62 × 36,421.78
  4. Step 4: Simplify right side
    53,988.85x = 2,950,550,979.30
  5. Step 5: Solve for x
    x = 2,950,550,979.30/53,988.85
  6. Step 6: Final answer
    x = 54,651.12

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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.