Home / 66,316.81-91,514.38-36,101.50

Finding the Fourth Proportional to 66,316.81, 91,514.38 and 36,101.50

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Solution

The fourth proportional to 66,316.81, 91,514.38 and 36,101.50 is: 49,818.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,316.81 : 91,514.38 = 36,101.50 : x
  2. Step 2: Convert to fraction form
    66,316.81/91,514.38 = 36,101.50/x
  3. Step 3: Cross multiply
    66,316.81x = 91,514.38 × 36,101.50
  4. Step 4: Simplify right side
    66,316.81x = 3,303,806,389.57
  5. Step 5: Solve for x
    x = 3,303,806,389.57/66,316.81
  6. Step 6: Final answer
    x = 49,818.54

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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.