Home / 66,538.30-99,807.45-53,416.30

Finding the Fourth Proportional to 66,538.30, 99,807.45 and 53,416.30

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Solution

The fourth proportional to 66,538.30, 99,807.45 and 53,416.30 is: 80,124.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,538.30 : 99,807.45 = 53,416.30 : x
  2. Step 2: Convert to fraction form
    66,538.30/99,807.45 = 53,416.30/x
  3. Step 3: Cross multiply
    66,538.30x = 99,807.45 × 53,416.30
  4. Step 4: Simplify right side
    66,538.30x = 5,331,344,691.44
  5. Step 5: Solve for x
    x = 5,331,344,691.44/66,538.30
  6. Step 6: Final answer
    x = 80,124.45

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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.