Home / 66,212.19-91,374.63-35,999.54

Finding the Fourth Proportional to 66,212.19, 91,374.63 and 35,999.54

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Solution

The fourth proportional to 66,212.19, 91,374.63 and 35,999.54 is: 49,680.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,212.19 : 91,374.63 = 35,999.54 : x
  2. Step 2: Convert to fraction form
    66,212.19/91,374.63 = 35,999.54/x
  3. Step 3: Cross multiply
    66,212.19x = 91,374.63 × 35,999.54
  4. Step 4: Simplify right side
    66,212.19x = 3,289,444,876.11
  5. Step 5: Solve for x
    x = 3,289,444,876.11/66,212.19
  6. Step 6: Final answer
    x = 49,680.35

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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.