Home / 66,036.20-99,054.30-43,777.40

Finding the Fourth Proportional to 66,036.20, 99,054.30 and 43,777.40

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Solution

The fourth proportional to 66,036.20, 99,054.30 and 43,777.40 is: 65,666.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,036.20 : 99,054.30 = 43,777.40 : x
  2. Step 2: Convert to fraction form
    66,036.20/99,054.30 = 43,777.40/x
  3. Step 3: Cross multiply
    66,036.20x = 99,054.30 × 43,777.40
  4. Step 4: Simplify right side
    66,036.20x = 4,336,339,712.82
  5. Step 5: Solve for x
    x = 4,336,339,712.82/66,036.20
  6. Step 6: Final answer
    x = 65,666.10

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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.