Home / 93,039.08-128,410.98-55,334.12

Finding the Fourth Proportional to 93,039.08, 128,410.98 and 55,334.12

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Solution

The fourth proportional to 93,039.08, 128,410.98 and 55,334.12 is: 76,371.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,039.08 : 128,410.98 = 55,334.12 : x
  2. Step 2: Convert to fraction form
    93,039.08/128,410.98 = 55,334.12/x
  3. Step 3: Cross multiply
    93,039.08x = 128,410.98 × 55,334.12
  4. Step 4: Simplify right side
    93,039.08x = 7,105,508,576.64
  5. Step 5: Solve for x
    x = 7,105,508,576.64/93,039.08
  6. Step 6: Final answer
    x = 76,371.23

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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.