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Finding the Fourth Proportional to 66,510.77, 91,784.07 and 36,296.60

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Solution

The fourth proportional to 66,510.77, 91,784.07 and 36,296.60 is: 50,088.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,510.77 : 91,784.07 = 36,296.60 : x
  2. Step 2: Convert to fraction form
    66,510.77/91,784.07 = 36,296.60/x
  3. Step 3: Cross multiply
    66,510.77x = 91,784.07 × 36,296.60
  4. Step 4: Simplify right side
    66,510.77x = 3,331,449,216.24
  5. Step 5: Solve for x
    x = 3,331,449,216.24/66,510.77
  6. Step 6: Final answer
    x = 50,088.87

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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.