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Finding the Fourth Proportional to 68,913.49, 95,111.03 and 42,071.65

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Solution

The fourth proportional to 68,913.49, 95,111.03 and 42,071.65 is: 58,065.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,913.49 : 95,111.03 = 42,071.65 : x
  2. Step 2: Convert to fraction form
    68,913.49/95,111.03 = 42,071.65/x
  3. Step 3: Cross multiply
    68,913.49x = 95,111.03 × 42,071.65
  4. Step 4: Simplify right side
    68,913.49x = 4,001,477,754.94
  5. Step 5: Solve for x
    x = 4,001,477,754.94/68,913.49
  6. Step 6: Final answer
    x = 58,065.23

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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.