Home / 66,136.37-91,218.18-45,983.16

Finding the Fourth Proportional to 66,136.37, 91,218.18 and 45,983.16

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Solution

The fourth proportional to 66,136.37, 91,218.18 and 45,983.16 is: 63,421.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,136.37 : 91,218.18 = 45,983.16 : x
  2. Step 2: Convert to fraction form
    66,136.37/91,218.18 = 45,983.16/x
  3. Step 3: Cross multiply
    66,136.37x = 91,218.18 × 45,983.16
  4. Step 4: Simplify right side
    66,136.37x = 4,194,499,935.93
  5. Step 5: Solve for x
    x = 4,194,499,935.93/66,136.37
  6. Step 6: Final answer
    x = 63,421.99

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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.