Home / 85,436.18-117,898.16-47,709.62

Finding the Fourth Proportional to 85,436.18, 117,898.16 and 47,709.62

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Solution

The fourth proportional to 85,436.18, 117,898.16 and 47,709.62 is: 65,837.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,436.18 : 117,898.16 = 47,709.62 : x
  2. Step 2: Convert to fraction form
    85,436.18/117,898.16 = 47,709.62/x
  3. Step 3: Cross multiply
    85,436.18x = 117,898.16 × 47,709.62
  4. Step 4: Simplify right side
    85,436.18x = 5,624,876,412.30
  5. Step 5: Solve for x
    x = 5,624,876,412.30/85,436.18
  6. Step 6: Final answer
    x = 65,837.17

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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.