Home / 76,947.30-106,144.61-45,110.07

Finding the Fourth Proportional to 76,947.30, 106,144.61 and 45,110.07

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Solution

The fourth proportional to 76,947.30, 106,144.61 and 45,110.07 is: 62,226.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,947.30 : 106,144.61 = 45,110.07 : x
  2. Step 2: Convert to fraction form
    76,947.30/106,144.61 = 45,110.07/x
  3. Step 3: Cross multiply
    76,947.30x = 106,144.61 × 45,110.07
  4. Step 4: Simplify right side
    76,947.30x = 4,788,190,561.67
  5. Step 5: Solve for x
    x = 4,788,190,561.67/76,947.30
  6. Step 6: Final answer
    x = 62,226.88

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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.