Home / 76,170.82-105,059.08-49,292.59

Finding the Fourth Proportional to 76,170.82, 105,059.08 and 49,292.59

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Solution

The fourth proportional to 76,170.82, 105,059.08 and 49,292.59 is: 67,987.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,170.82 : 105,059.08 = 49,292.59 : x
  2. Step 2: Convert to fraction form
    76,170.82/105,059.08 = 49,292.59/x
  3. Step 3: Cross multiply
    76,170.82x = 105,059.08 × 49,292.59
  4. Step 4: Simplify right side
    76,170.82x = 5,178,634,156.22
  5. Step 5: Solve for x
    x = 5,178,634,156.22/76,170.82
  6. Step 6: Final answer
    x = 67,987.11

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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.