Home / 93,719.16-129,335.64-53,438.88

Finding the Fourth Proportional to 93,719.16, 129,335.64 and 53,438.88

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Solution

The fourth proportional to 93,719.16, 129,335.64 and 53,438.88 is: 73,747.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,719.16 : 129,335.64 = 53,438.88 : x
  2. Step 2: Convert to fraction form
    93,719.16/129,335.64 = 53,438.88/x
  3. Step 3: Cross multiply
    93,719.16x = 129,335.64 × 53,438.88
  4. Step 4: Simplify right side
    93,719.16x = 6,911,551,745.68
  5. Step 5: Solve for x
    x = 6,911,551,745.68/93,719.16
  6. Step 6: Final answer
    x = 73,747.48

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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.