Home / 45,981.88-69,031.20-39,100.12

Finding the Fourth Proportional to 45,981.88, 69,031.20 and 39,100.12

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Solution

The fourth proportional to 45,981.88, 69,031.20 and 39,100.12 is: 58,699.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,981.88 : 69,031.20 = 39,100.12 : x
  2. Step 2: Convert to fraction form
    45,981.88/69,031.20 = 39,100.12/x
  3. Step 3: Cross multiply
    45,981.88x = 69,031.20 × 39,100.12
  4. Step 4: Simplify right side
    45,981.88x = 2,699,128,203.74
  5. Step 5: Solve for x
    x = 2,699,128,203.74/45,981.88
  6. Step 6: Final answer
    x = 58,699.82

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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.