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Finding the Fourth Proportional to 85,353.66, 117,788.49 and 47,628.18

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Solution

The fourth proportional to 85,353.66, 117,788.49 and 47,628.18 is: 65,727.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,353.66 : 117,788.49 = 47,628.18 : x
  2. Step 2: Convert to fraction form
    85,353.66/117,788.49 = 47,628.18/x
  3. Step 3: Cross multiply
    85,353.66x = 117,788.49 × 47,628.18
  4. Step 4: Simplify right side
    85,353.66x = 5,610,051,403.65
  5. Step 5: Solve for x
    x = 5,610,051,403.65/85,353.66
  6. Step 6: Final answer
    x = 65,727.13

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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.