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Finding the Fourth Proportional to 68,484.59, 94,518.12 and 39,412.37

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Solution

The fourth proportional to 68,484.59, 94,518.12 and 39,412.37 is: 54,394.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,484.59 : 94,518.12 = 39,412.37 : x
  2. Step 2: Convert to fraction form
    68,484.59/94,518.12 = 39,412.37/x
  3. Step 3: Cross multiply
    68,484.59x = 94,518.12 × 39,412.37
  4. Step 4: Simplify right side
    68,484.59x = 3,725,183,117.14
  5. Step 5: Solve for x
    x = 3,725,183,117.14/68,484.59
  6. Step 6: Final answer
    x = 54,394.47

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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.