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Finding the Fourth Proportional to 66,301.40, 91,497.87 and 36,088.68

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Solution

The fourth proportional to 66,301.40, 91,497.87 and 36,088.68 is: 49,803.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,301.40 : 91,497.87 = 36,088.68 : x
  2. Step 2: Convert to fraction form
    66,301.40/91,497.87 = 36,088.68/x
  3. Step 3: Cross multiply
    66,301.40x = 91,497.87 × 36,088.68
  4. Step 4: Simplify right side
    66,301.40x = 3,302,037,351.11
  5. Step 5: Solve for x
    x = 3,302,037,351.11/66,301.40
  6. Step 6: Final answer
    x = 49,803.44

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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.