Home / 82,236.12-113,427.30-56,752.20

Finding the Fourth Proportional to 82,236.12, 113,427.30 and 56,752.20

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Solution

The fourth proportional to 82,236.12, 113,427.30 and 56,752.20 is: 78,277.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,236.12 : 113,427.30 = 56,752.20 : x
  2. Step 2: Convert to fraction form
    82,236.12/113,427.30 = 56,752.20/x
  3. Step 3: Cross multiply
    82,236.12x = 113,427.30 × 56,752.20
  4. Step 4: Simplify right side
    82,236.12x = 6,437,248,815.06
  5. Step 5: Solve for x
    x = 6,437,248,815.06/82,236.12
  6. Step 6: Final answer
    x = 78,277.63

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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.