Home / 76,265.11-105,210.25-47,986.39

Finding the Fourth Proportional to 76,265.11, 105,210.25 and 47,986.39

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Solution

The fourth proportional to 76,265.11, 105,210.25 and 47,986.39 is: 66,198.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,265.11 : 105,210.25 = 47,986.39 : x
  2. Step 2: Convert to fraction form
    76,265.11/105,210.25 = 47,986.39/x
  3. Step 3: Cross multiply
    76,265.11x = 105,210.25 × 47,986.39
  4. Step 4: Simplify right side
    76,265.11x = 5,048,660,088.50
  5. Step 5: Solve for x
    x = 5,048,660,088.50/76,265.11
  6. Step 6: Final answer
    x = 66,198.82

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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.