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Finding the Fourth Proportional to 44,639, 66,958.88 and 11,359.10

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Solution

The fourth proportional to 44,639, 66,958.88 and 11,359.10 is: 17,038.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,639 : 66,958.88 = 11,359.10 : x
  2. Step 2: Convert to fraction form
    44,639/66,958.88 = 11,359.10/x
  3. Step 3: Cross multiply
    44,639x = 66,958.88 × 11,359.10
  4. Step 4: Simplify right side
    44,639x = 760,592,613.81
  5. Step 5: Solve for x
    x = 760,592,613.81/44,639
  6. Step 6: Final answer
    x = 17,038.75

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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.