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Finding the Fourth Proportional to 68,365.10, 102,547.65 and 54,541.10

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Solution

The fourth proportional to 68,365.10, 102,547.65 and 54,541.10 is: 81,811.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,365.10 : 102,547.65 = 54,541.10 : x
  2. Step 2: Convert to fraction form
    68,365.10/102,547.65 = 54,541.10/x
  3. Step 3: Cross multiply
    68,365.10x = 102,547.65 × 54,541.10
  4. Step 4: Simplify right side
    68,365.10x = 5,593,061,633.42
  5. Step 5: Solve for x
    x = 5,593,061,633.42/68,365.10
  6. Step 6: Final answer
    x = 81,811.65

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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.