Home / 86,118.12-118,842.93-47,876.49

Finding the Fourth Proportional to 86,118.12, 118,842.93 and 47,876.49

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Solution

The fourth proportional to 86,118.12, 118,842.93 and 47,876.49 is: 66,069.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,118.12 : 118,842.93 = 47,876.49 : x
  2. Step 2: Convert to fraction form
    86,118.12/118,842.93 = 47,876.49/x
  3. Step 3: Cross multiply
    86,118.12x = 118,842.93 × 47,876.49
  4. Step 4: Simplify right side
    86,118.12x = 5,689,782,349.72
  5. Step 5: Solve for x
    x = 5,689,782,349.72/86,118.12
  6. Step 6: Final answer
    x = 66,069.51

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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.