Home / 86,992.20-120,045.61-49,266.45

Finding the Fourth Proportional to 86,992.20, 120,045.61 and 49,266.45

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Solution

The fourth proportional to 86,992.20, 120,045.61 and 49,266.45 is: 67,985.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,992.20 : 120,045.61 = 49,266.45 : x
  2. Step 2: Convert to fraction form
    86,992.20/120,045.61 = 49,266.45/x
  3. Step 3: Cross multiply
    86,992.20x = 120,045.61 × 49,266.45
  4. Step 4: Simplify right side
    86,992.20x = 5,914,220,796.45
  5. Step 5: Solve for x
    x = 5,914,220,796.45/86,992.20
  6. Step 6: Final answer
    x = 67,985.64

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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.