Home / 93,220.13-128,660.45-54,977.33

Finding the Fourth Proportional to 93,220.13, 128,660.45 and 54,977.33

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Solution

The fourth proportional to 93,220.13, 128,660.45 and 54,977.33 is: 75,878.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,220.13 : 128,660.45 = 54,977.33 : x
  2. Step 2: Convert to fraction form
    93,220.13/128,660.45 = 54,977.33/x
  3. Step 3: Cross multiply
    93,220.13x = 128,660.45 × 54,977.33
  4. Step 4: Simplify right side
    93,220.13x = 7,073,407,099.41
  5. Step 5: Solve for x
    x = 7,073,407,099.41/93,220.13
  6. Step 6: Final answer
    x = 75,878.54

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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.