Home / 93,404.12-128,901.36-53,121.56

Finding the Fourth Proportional to 93,404.12, 128,901.36 and 53,121.56

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Solution

The fourth proportional to 93,404.12, 128,901.36 and 53,121.56 is: 73,309.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,404.12 : 128,901.36 = 53,121.56 : x
  2. Step 2: Convert to fraction form
    93,404.12/128,901.36 = 53,121.56/x
  3. Step 3: Cross multiply
    93,404.12x = 128,901.36 × 53,121.56
  4. Step 4: Simplify right side
    93,404.12x = 6,847,441,329.32
  5. Step 5: Solve for x
    x = 6,847,441,329.32/93,404.12
  6. Step 6: Final answer
    x = 73,309.84

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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.