Home / 93,401.79-128,807.46-61,515.33

Finding the Fourth Proportional to 93,401.79, 128,807.46 and 61,515.33

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Solution

The fourth proportional to 93,401.79, 128,807.46 and 61,515.33 is: 84,833.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    93,401.79 : 128,807.46 = 61,515.33 : x
  2. Step 2: Convert to fraction form
    93,401.79/128,807.46 = 61,515.33/x
  3. Step 3: Cross multiply
    93,401.79x = 128,807.46 × 61,515.33
  4. Step 4: Simplify right side
    93,401.79x = 7,923,633,408.36
  5. Step 5: Solve for x
    x = 7,923,633,408.36/93,401.79
  6. Step 6: Final answer
    x = 84,833.85

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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.