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Finding the Fourth Proportional to 45,044, 67,565.46 and 42,303.78

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Solution

The fourth proportional to 45,044, 67,565.46 and 42,303.78 is: 63,455.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,044 : 67,565.46 = 42,303.78 : x
  2. Step 2: Convert to fraction form
    45,044/67,565.46 = 42,303.78/x
  3. Step 3: Cross multiply
    45,044x = 67,565.46 × 42,303.78
  4. Step 4: Simplify right side
    45,044x = 2,858,274,355.44
  5. Step 5: Solve for x
    x = 2,858,274,355.44/45,044
  6. Step 6: Final answer
    x = 63,455.16

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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.