Home / 82,258.20-113,457.60-56,774.20

Finding the Fourth Proportional to 82,258.20, 113,457.60 and 56,774.20

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Solution

The fourth proportional to 82,258.20, 113,457.60 and 56,774.20 is: 78,307.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,258.20 : 113,457.60 = 56,774.20 : x
  2. Step 2: Convert to fraction form
    82,258.20/113,457.60 = 56,774.20/x
  3. Step 3: Cross multiply
    82,258.20x = 113,457.60 × 56,774.20
  4. Step 4: Simplify right side
    82,258.20x = 6,441,464,473.92
  5. Step 5: Solve for x
    x = 6,441,464,473.92/82,258.20
  6. Step 6: Final answer
    x = 78,307.87

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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.