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Finding the Fourth Proportional to 65,813.26, 90,821.91 and 37,518.34

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Solution

The fourth proportional to 65,813.26, 90,821.91 and 37,518.34 is: 51,775.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,813.26 : 90,821.91 = 37,518.34 : x
  2. Step 2: Convert to fraction form
    65,813.26/90,821.91 = 37,518.34/x
  3. Step 3: Cross multiply
    65,813.26x = 90,821.91 × 37,518.34
  4. Step 4: Simplify right side
    65,813.26x = 3,407,487,298.83
  5. Step 5: Solve for x
    x = 3,407,487,298.83/65,813.26
  6. Step 6: Final answer
    x = 51,775.09

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1.5x scale

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.