Home / 93,431.64-128,933.85-50,990.49

Finding the Fourth Proportional to 93,431.64, 128,933.85 and 50,990.49

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Solution

The fourth proportional to 93,431.64, 128,933.85 and 50,990.49 is: 70,365.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,431.64 : 128,933.85 = 50,990.49 : x
  2. Step 2: Convert to fraction form
    93,431.64/128,933.85 = 50,990.49/x
  3. Step 3: Cross multiply
    93,431.64x = 128,933.85 × 50,990.49
  4. Step 4: Simplify right side
    93,431.64x = 6,574,400,189.09
  5. Step 5: Solve for x
    x = 6,574,400,189.09/93,431.64
  6. Step 6: Final answer
    x = 70,365.89

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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.