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Finding the Fourth Proportional to 63,135.52, 94,718.70 and 21,015.52

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Solution

The fourth proportional to 63,135.52, 94,718.70 and 21,015.52 is: 31,528.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,135.52 : 94,718.70 = 21,015.52 : x
  2. Step 2: Convert to fraction form
    63,135.52/94,718.70 = 21,015.52/x
  3. Step 3: Cross multiply
    63,135.52x = 94,718.70 × 21,015.52
  4. Step 4: Simplify right side
    63,135.52x = 1,990,562,734.22
  5. Step 5: Solve for x
    x = 1,990,562,734.22/63,135.52
  6. Step 6: Final answer
    x = 31,528.41

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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.