Home / 55,669.50-76,823.91-30,519

Finding the Fourth Proportional to 55,669.50, 76,823.91 and 30,519

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Solution

The fourth proportional to 55,669.50, 76,823.91 and 30,519 is: 42,116.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,669.50 : 76,823.91 = 30,519 : x
  2. Step 2: Convert to fraction form
    55,669.50/76,823.91 = 30,519/x
  3. Step 3: Cross multiply
    55,669.50x = 76,823.91 × 30,519
  4. Step 4: Simplify right side
    55,669.50x = 2,344,588,909.29
  5. Step 5: Solve for x
    x = 2,344,588,909.29/55,669.50
  6. Step 6: Final answer
    x = 42,116.22

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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.