Home / 66,448.08-91,698.48-42,574.86

Finding the Fourth Proportional to 66,448.08, 91,698.48 and 42,574.86

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Solution

The fourth proportional to 66,448.08, 91,698.48 and 42,574.86 is: 58,753.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,448.08 : 91,698.48 = 42,574.86 : x
  2. Step 2: Convert to fraction form
    66,448.08/91,698.48 = 42,574.86/x
  3. Step 3: Cross multiply
    66,448.08x = 91,698.48 × 42,574.86
  4. Step 4: Simplify right side
    66,448.08x = 3,904,049,948.21
  5. Step 5: Solve for x
    x = 3,904,049,948.21/66,448.08
  6. Step 6: Final answer
    x = 58,753.39

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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.