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Finding the Fourth Proportional to 93,019.92, 139,539 and 36,857.76

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Solution

The fourth proportional to 93,019.92, 139,539 and 36,857.76 is: 55,290.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,019.92 : 139,539 = 36,857.76 : x
  2. Step 2: Convert to fraction form
    93,019.92/139,539 = 36,857.76/x
  3. Step 3: Cross multiply
    93,019.92x = 139,539 × 36,857.76
  4. Step 4: Simplify right side
    93,019.92x = 5,143,094,972.64
  5. Step 5: Solve for x
    x = 5,143,094,972.64/93,019.92
  6. Step 6: Final answer
    x = 55,290.25

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.