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Finding the Fourth Proportional to 93,313.30, 139,969.95 and 30,983.80

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Solution

The fourth proportional to 93,313.30, 139,969.95 and 30,983.80 is: 46,475.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,313.30 : 139,969.95 = 30,983.80 : x
  2. Step 2: Convert to fraction form
    93,313.30/139,969.95 = 30,983.80/x
  3. Step 3: Cross multiply
    93,313.30x = 139,969.95 × 30,983.80
  4. Step 4: Simplify right side
    93,313.30x = 4,336,800,936.81
  5. Step 5: Solve for x
    x = 4,336,800,936.81/93,313.30
  6. Step 6: Final answer
    x = 46,475.70

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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.