Home / 71,213.32-98,378.58-56,205.64

Finding the Fourth Proportional to 71,213.32, 98,378.58 and 56,205.64

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Solution

The fourth proportional to 71,213.32, 98,378.58 and 56,205.64 is: 77,646.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,213.32 : 98,378.58 = 56,205.64 : x
  2. Step 2: Convert to fraction form
    71,213.32/98,378.58 = 56,205.64/x
  3. Step 3: Cross multiply
    71,213.32x = 98,378.58 × 56,205.64
  4. Step 4: Simplify right side
    71,213.32x = 5,529,431,051.19
  5. Step 5: Solve for x
    x = 5,529,431,051.19/71,213.32
  6. Step 6: Final answer
    x = 77,646.02

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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.