Home / 76,641.23-105,763.33-47,976.70

Finding the Fourth Proportional to 76,641.23, 105,763.33 and 47,976.70

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Solution

The fourth proportional to 76,641.23, 105,763.33 and 47,976.70 is: 66,206.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,641.23 : 105,763.33 = 47,976.70 : x
  2. Step 2: Convert to fraction form
    76,641.23/105,763.33 = 47,976.70/x
  3. Step 3: Cross multiply
    76,641.23x = 105,763.33 × 47,976.70
  4. Step 4: Simplify right side
    76,641.23x = 5,074,175,025.59
  5. Step 5: Solve for x
    x = 5,074,175,025.59/76,641.23
  6. Step 6: Final answer
    x = 66,206.86

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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.