Home / 55,332.98-76,354.38-31,455

Finding the Fourth Proportional to 55,332.98, 76,354.38 and 31,455

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Solution

The fourth proportional to 55,332.98, 76,354.38 and 31,455 is: 43,404.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,332.98 : 76,354.38 = 31,455 : x
  2. Step 2: Convert to fraction form
    55,332.98/76,354.38 = 31,455/x
  3. Step 3: Cross multiply
    55,332.98x = 76,354.38 × 31,455
  4. Step 4: Simplify right side
    55,332.98x = 2,401,727,022.90
  5. Step 5: Solve for x
    x = 2,401,727,022.90/55,332.98
  6. Step 6: Final answer
    x = 43,404.98

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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.