Home / 86,211.63-118,970.17-49,914.61

Finding the Fourth Proportional to 86,211.63, 118,970.17 and 49,914.61

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Solution

The fourth proportional to 86,211.63, 118,970.17 and 49,914.61 is: 68,881.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,211.63 : 118,970.17 = 49,914.61 : x
  2. Step 2: Convert to fraction form
    86,211.63/118,970.17 = 49,914.61/x
  3. Step 3: Cross multiply
    86,211.63x = 118,970.17 × 49,914.61
  4. Step 4: Simplify right side
    86,211.63x = 5,938,349,214.97
  5. Step 5: Solve for x
    x = 5,938,349,214.97/86,211.63
  6. Step 6: Final answer
    x = 68,881.07

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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.