Home / 65,511.16-90,407.82-37,221.64

Finding the Fourth Proportional to 65,511.16, 90,407.82 and 37,221.64

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Solution

The fourth proportional to 65,511.16, 90,407.82 and 37,221.64 is: 51,367.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,511.16 : 90,407.82 = 37,221.64 : x
  2. Step 2: Convert to fraction form
    65,511.16/90,407.82 = 37,221.64/x
  3. Step 3: Cross multiply
    65,511.16x = 90,407.82 × 37,221.64
  4. Step 4: Simplify right side
    65,511.16x = 3,365,127,329.22
  5. Step 5: Solve for x
    x = 3,365,127,329.22/65,511.16
  6. Step 6: Final answer
    x = 51,367.24

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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.