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Finding the Fourth Proportional to 45,644.81, 68,437.89 and 19,009.26

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Solution

The fourth proportional to 45,644.81, 68,437.89 and 19,009.26 is: 28,501.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,644.81 : 68,437.89 = 19,009.26 : x
  2. Step 2: Convert to fraction form
    45,644.81/68,437.89 = 19,009.26/x
  3. Step 3: Cross multiply
    45,644.81x = 68,437.89 × 19,009.26
  4. Step 4: Simplify right side
    45,644.81x = 1,300,953,644.86
  5. Step 5: Solve for x
    x = 1,300,953,644.86/45,644.81
  6. Step 6: Final answer
    x = 28,501.68

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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.