Home / 93,151.36-128,548.22-50,709.78

Finding the Fourth Proportional to 93,151.36, 128,548.22 and 50,709.78

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Solution

The fourth proportional to 93,151.36, 128,548.22 and 50,709.78 is: 69,979.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,151.36 : 128,548.22 = 50,709.78 : x
  2. Step 2: Convert to fraction form
    93,151.36/128,548.22 = 50,709.78/x
  3. Step 3: Cross multiply
    93,151.36x = 128,548.22 × 50,709.78
  4. Step 4: Simplify right side
    93,151.36x = 6,518,651,955.59
  5. Step 5: Solve for x
    x = 6,518,651,955.59/93,151.36
  6. Step 6: Final answer
    x = 69,979.14

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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.