Home / 93,789.63-129,431.12-51,352.11

Finding the Fourth Proportional to 93,789.63, 129,431.12 and 51,352.11

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Solution

The fourth proportional to 93,789.63, 129,431.12 and 51,352.11 is: 70,866.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,789.63 : 129,431.12 = 51,352.11 : x
  2. Step 2: Convert to fraction form
    93,789.63/129,431.12 = 51,352.11/x
  3. Step 3: Cross multiply
    93,789.63x = 129,431.12 × 51,352.11
  4. Step 4: Simplify right side
    93,789.63x = 6,646,560,854.90
  5. Step 5: Solve for x
    x = 6,646,560,854.90/93,789.63
  6. Step 6: Final answer
    x = 70,866.69

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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.