Home / 76,940.36-106,158.99-45,103.10

Finding the Fourth Proportional to 76,940.36, 106,158.99 and 45,103.10

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Solution

The fourth proportional to 76,940.36, 106,158.99 and 45,103.10 is: 62,231.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,940.36 : 106,158.99 = 45,103.10 : x
  2. Step 2: Convert to fraction form
    76,940.36/106,158.99 = 45,103.10/x
  3. Step 3: Cross multiply
    76,940.36x = 106,158.99 × 45,103.10
  4. Step 4: Simplify right side
    76,940.36x = 4,788,099,011.07
  5. Step 5: Solve for x
    x = 4,788,099,011.07/76,940.36
  6. Step 6: Final answer
    x = 62,231.31

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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.