Home / 76,226.52-105,157.17-49,378.08

Finding the Fourth Proportional to 76,226.52, 105,157.17 and 49,378.08

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Solution

The fourth proportional to 76,226.52, 105,157.17 and 49,378.08 is: 68,118.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,226.52 : 105,157.17 = 49,378.08 : x
  2. Step 2: Convert to fraction form
    76,226.52/105,157.17 = 49,378.08/x
  3. Step 3: Cross multiply
    76,226.52x = 105,157.17 × 49,378.08
  4. Step 4: Simplify right side
    76,226.52x = 5,192,459,152.83
  5. Step 5: Solve for x
    x = 5,192,459,152.83/76,226.52
  6. Step 6: Final answer
    x = 68,118.80

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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.