Home / 66,296.12-91,522.50-51,154.76

Finding the Fourth Proportional to 66,296.12, 91,522.50 and 51,154.76

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Solution

The fourth proportional to 66,296.12, 91,522.50 and 51,154.76 is: 70,619.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,296.12 : 91,522.50 = 51,154.76 : x
  2. Step 2: Convert to fraction form
    66,296.12/91,522.50 = 51,154.76/x
  3. Step 3: Cross multiply
    66,296.12x = 91,522.50 × 51,154.76
  4. Step 4: Simplify right side
    66,296.12x = 4,681,811,522.10
  5. Step 5: Solve for x
    x = 4,681,811,522.10/66,296.12
  6. Step 6: Final answer
    x = 70,619.69

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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.