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Finding the Fourth Proportional to 64,681.56, 89,257.66 and 36,002.72

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Solution

The fourth proportional to 64,681.56, 89,257.66 and 36,002.72 is: 49,682.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,681.56 : 89,257.66 = 36,002.72 : x
  2. Step 2: Convert to fraction form
    64,681.56/89,257.66 = 36,002.72/x
  3. Step 3: Cross multiply
    64,681.56x = 89,257.66 × 36,002.72
  4. Step 4: Simplify right side
    64,681.56x = 3,213,518,540.84
  5. Step 5: Solve for x
    x = 3,213,518,540.84/64,681.56
  6. Step 6: Final answer
    x = 49,682.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.