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Finding the Fourth Proportional to 63,145.47, 94,651.56 and 21,014.22

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Solution

The fourth proportional to 63,145.47, 94,651.56 and 21,014.22 is: 31,499.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,145.47 : 94,651.56 = 21,014.22 : x
  2. Step 2: Convert to fraction form
    63,145.47/94,651.56 = 21,014.22/x
  3. Step 3: Cross multiply
    63,145.47x = 94,651.56 × 21,014.22
  4. Step 4: Simplify right side
    63,145.47x = 1,989,028,705.18
  5. Step 5: Solve for x
    x = 1,989,028,705.18/63,145.47
  6. Step 6: Final answer
    x = 31,499.15

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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.