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Finding the Fourth Proportional to 68,316.06, 102,477.16 and 20,927.69

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Solution

The fourth proportional to 68,316.06, 102,477.16 and 20,927.69 is: 31,392.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,316.06 : 102,477.16 = 20,927.69 : x
  2. Step 2: Convert to fraction form
    68,316.06/102,477.16 = 20,927.69/x
  3. Step 3: Cross multiply
    68,316.06x = 102,477.16 × 20,927.69
  4. Step 4: Simplify right side
    68,316.06x = 2,144,610,056.14
  5. Step 5: Solve for x
    x = 2,144,610,056.14/68,316.06
  6. Step 6: Final answer
    x = 31,392.47

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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.