Home / 77,036.20-115,554.30-37,618.60

Finding the Fourth Proportional to 77,036.20, 115,554.30 and 37,618.60

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Solution

The fourth proportional to 77,036.20, 115,554.30 and 37,618.60 is: 56,427.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,036.20 : 115,554.30 = 37,618.60 : x
  2. Step 2: Convert to fraction form
    77,036.20/115,554.30 = 37,618.60/x
  3. Step 3: Cross multiply
    77,036.20x = 115,554.30 × 37,618.60
  4. Step 4: Simplify right side
    77,036.20x = 4,346,990,989.98
  5. Step 5: Solve for x
    x = 4,346,990,989.98/77,036.20
  6. Step 6: Final answer
    x = 56,427.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.