Home / 93,431.81-128,936.79-50,990.33

Finding the Fourth Proportional to 93,431.81, 128,936.79 and 50,990.33

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Solution

The fourth proportional to 93,431.81, 128,936.79 and 50,990.33 is: 70,367.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,431.81 : 128,936.79 = 50,990.33 : x
  2. Step 2: Convert to fraction form
    93,431.81/128,936.79 = 50,990.33/x
  3. Step 3: Cross multiply
    93,431.81x = 128,936.79 × 50,990.33
  4. Step 4: Simplify right side
    93,431.81x = 6,574,529,793.58
  5. Step 5: Solve for x
    x = 6,574,529,793.58/93,431.81
  6. Step 6: Final answer
    x = 70,367.14

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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.