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Finding the Fourth Proportional to 63,345.56, 94,986.54 and 21,211.16

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Solution

The fourth proportional to 63,345.56, 94,986.54 and 21,211.16 is: 31,806.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,345.56 : 94,986.54 = 21,211.16 : x
  2. Step 2: Convert to fraction form
    63,345.56/94,986.54 = 21,211.16/x
  3. Step 3: Cross multiply
    63,345.56x = 94,986.54 × 21,211.16
  4. Step 4: Simplify right side
    63,345.56x = 2,014,774,697.79
  5. Step 5: Solve for x
    x = 2,014,774,697.79/63,345.56
  6. Step 6: Final answer
    x = 31,806.09

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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.