Home / 68,063.07-102,099.47-18,142.91

Finding the Fourth Proportional to 68,063.07, 102,099.47 and 18,142.91

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Solution

The fourth proportional to 68,063.07, 102,099.47 and 18,142.91 is: 27,215.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,063.07 : 102,099.47 = 18,142.91 : x
  2. Step 2: Convert to fraction form
    68,063.07/102,099.47 = 18,142.91/x
  3. Step 3: Cross multiply
    68,063.07x = 102,099.47 × 18,142.91
  4. Step 4: Simplify right side
    68,063.07x = 1,852,381,495.26
  5. Step 5: Solve for x
    x = 1,852,381,495.26/68,063.07
  6. Step 6: Final answer
    x = 27,215.66

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1.5x scale

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.