Home / 93,986.78-129,689.76-53,703.16

Finding the Fourth Proportional to 93,986.78, 129,689.76 and 53,703.16

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Solution

The fourth proportional to 93,986.78, 129,689.76 and 53,703.16 is: 74,103.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,986.78 : 129,689.76 = 53,703.16 : x
  2. Step 2: Convert to fraction form
    93,986.78/129,689.76 = 53,703.16/x
  3. Step 3: Cross multiply
    93,986.78x = 129,689.76 × 53,703.16
  4. Step 4: Simplify right side
    93,986.78x = 6,964,749,931.64
  5. Step 5: Solve for x
    x = 6,964,749,931.64/93,986.78
  6. Step 6: Final answer
    x = 74,103.51

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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.