Home / 76,625.85-105,746.18-47,936.34

Finding the Fourth Proportional to 76,625.85, 105,746.18 and 47,936.34

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Solution

The fourth proportional to 76,625.85, 105,746.18 and 47,936.34 is: 66,153.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,625.85 : 105,746.18 = 47,936.34 : x
  2. Step 2: Convert to fraction form
    76,625.85/105,746.18 = 47,936.34/x
  3. Step 3: Cross multiply
    76,625.85x = 105,746.18 × 47,936.34
  4. Step 4: Simplify right side
    76,625.85x = 5,069,085,145.73
  5. Step 5: Solve for x
    x = 5,069,085,145.73/76,625.85
  6. Step 6: Final answer
    x = 66,153.72

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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.