Home / 76,240.40-105,210.48-41,784.80

Finding the Fourth Proportional to 76,240.40, 105,210.48 and 41,784.80

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Solution

The fourth proportional to 76,240.40, 105,210.48 and 41,784.80 is: 57,662.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,240.40 : 105,210.48 = 41,784.80 : x
  2. Step 2: Convert to fraction form
    76,240.40/105,210.48 = 41,784.80/x
  3. Step 3: Cross multiply
    76,240.40x = 105,210.48 × 41,784.80
  4. Step 4: Simplify right side
    76,240.40x = 4,396,198,864.70
  5. Step 5: Solve for x
    x = 4,396,198,864.70/76,240.40
  6. Step 6: Final answer
    x = 57,662.33

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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.