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Finding the Fourth Proportional to 85,433.68, 117,894.72 and 47,707.12

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Solution

The fourth proportional to 85,433.68, 117,894.72 and 47,707.12 is: 65,833.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,433.68 : 117,894.72 = 47,707.12 : x
  2. Step 2: Convert to fraction form
    85,433.68/117,894.72 = 47,707.12/x
  3. Step 3: Cross multiply
    85,433.68x = 117,894.72 × 47,707.12
  4. Step 4: Simplify right side
    85,433.68x = 5,624,417,554.41
  5. Step 5: Solve for x
    x = 5,624,417,554.41/85,433.68
  6. Step 6: Final answer
    x = 65,833.73

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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.