Home / 93,190.50-128,615.04-55,464.75

Finding the Fourth Proportional to 93,190.50, 128,615.04 and 55,464.75

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Solution

The fourth proportional to 93,190.50, 128,615.04 and 55,464.75 is: 76,548.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,190.50 : 128,615.04 = 55,464.75 : x
  2. Step 2: Convert to fraction form
    93,190.50/128,615.04 = 55,464.75/x
  3. Step 3: Cross multiply
    93,190.50x = 128,615.04 × 55,464.75
  4. Step 4: Simplify right side
    93,190.50x = 7,133,601,039.84
  5. Step 5: Solve for x
    x = 7,133,601,039.84/93,190.50
  6. Step 6: Final answer
    x = 76,548.59

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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.