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Finding the Fourth Proportional to 64,860.36, 89,500.74 and 47,873.88

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Solution

The fourth proportional to 64,860.36, 89,500.74 and 47,873.88 is: 66,061.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,860.36 : 89,500.74 = 47,873.88 : x
  2. Step 2: Convert to fraction form
    64,860.36/89,500.74 = 47,873.88/x
  3. Step 3: Cross multiply
    64,860.36x = 89,500.74 × 47,873.88
  4. Step 4: Simplify right side
    64,860.36x = 4,284,747,686.67
  5. Step 5: Solve for x
    x = 4,284,747,686.67/64,860.36
  6. Step 6: Final answer
    x = 66,061.11

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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.