Home / 51,129.88-70,554.18-29,905

Finding the Fourth Proportional to 51,129.88, 70,554.18 and 29,905

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Solution

The fourth proportional to 51,129.88, 70,554.18 and 29,905 is: 41,265.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,129.88 : 70,554.18 = 29,905 : x
  2. Step 2: Convert to fraction form
    51,129.88/70,554.18 = 29,905/x
  3. Step 3: Cross multiply
    51,129.88x = 70,554.18 × 29,905
  4. Step 4: Simplify right side
    51,129.88x = 2,109,922,752.90
  5. Step 5: Solve for x
    x = 2,109,922,752.90/51,129.88
  6. Step 6: Final answer
    x = 41,265.94

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1.5x scale

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.