Home / 93,029.88-128,378.52-52,747.36

Finding the Fourth Proportional to 93,029.88, 128,378.52 and 52,747.36

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Solution

The fourth proportional to 93,029.88, 128,378.52 and 52,747.36 is: 72,789.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,029.88 : 128,378.52 = 52,747.36 : x
  2. Step 2: Convert to fraction form
    93,029.88/128,378.52 = 52,747.36/x
  3. Step 3: Cross multiply
    93,029.88x = 128,378.52 × 52,747.36
  4. Step 4: Simplify right side
    93,029.88x = 6,771,628,010.71
  5. Step 5: Solve for x
    x = 6,771,628,010.71/93,029.88
  6. Step 6: Final answer
    x = 72,789.82

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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.