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Finding the Fourth Proportional to 56,998.69, 85,498.34 and 15,445.69

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Solution

The fourth proportional to 56,998.69, 85,498.34 and 15,445.69 is: 23,168.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,998.69 : 85,498.34 = 15,445.69 : x
  2. Step 2: Convert to fraction form
    56,998.69/85,498.34 = 15,445.69/x
  3. Step 3: Cross multiply
    56,998.69x = 85,498.34 × 15,445.69
  4. Step 4: Simplify right side
    56,998.69x = 1,320,580,564.18
  5. Step 5: Solve for x
    x = 1,320,580,564.18/56,998.69
  6. Step 6: Final answer
    x = 23,168.61

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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.