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Finding the Fourth Proportional to 56,365.86, 84,508.74 and 28,265.64

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Solution

The fourth proportional to 56,365.86, 84,508.74 and 28,265.64 is: 42,378.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,365.86 : 84,508.74 = 28,265.64 : x
  2. Step 2: Convert to fraction form
    56,365.86/84,508.74 = 28,265.64/x
  3. Step 3: Cross multiply
    56,365.86x = 84,508.74 × 28,265.64
  4. Step 4: Simplify right side
    56,365.86x = 2,388,693,621.69
  5. Step 5: Solve for x
    x = 2,388,693,621.69/56,365.86
  6. Step 6: Final answer
    x = 42,378.38

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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.