Home / 66,218.76-91,382.40-36,004.68

Finding the Fourth Proportional to 66,218.76, 91,382.40 and 36,004.68

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Solution

The fourth proportional to 66,218.76, 91,382.40 and 36,004.68 is: 49,686.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,218.76 : 91,382.40 = 36,004.68 : x
  2. Step 2: Convert to fraction form
    66,218.76/91,382.40 = 36,004.68/x
  3. Step 3: Cross multiply
    66,218.76x = 91,382.40 × 36,004.68
  4. Step 4: Simplify right side
    66,218.76x = 3,290,194,069.63
  5. Step 5: Solve for x
    x = 3,290,194,069.63/66,218.76
  6. Step 6: Final answer
    x = 49,686.74

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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.