Home / 76,478.12-105,523.82-46,257.54

Finding the Fourth Proportional to 76,478.12, 105,523.82 and 46,257.54

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Solution

The fourth proportional to 76,478.12, 105,523.82 and 46,257.54 is: 63,825.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,478.12 : 105,523.82 = 46,257.54 : x
  2. Step 2: Convert to fraction form
    76,478.12/105,523.82 = 46,257.54/x
  3. Step 3: Cross multiply
    76,478.12x = 105,523.82 × 46,257.54
  4. Step 4: Simplify right side
    76,478.12x = 4,881,272,324.60
  5. Step 5: Solve for x
    x = 4,881,272,324.60/76,478.12
  6. Step 6: Final answer
    x = 63,825.74

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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.