Home / 49,861.32-74,792.30-12,421.48

Finding the Fourth Proportional to 49,861.32, 74,792.30 and 12,421.48

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Solution

The fourth proportional to 49,861.32, 74,792.30 and 12,421.48 is: 18,632.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,861.32 : 74,792.30 = 12,421.48 : x
  2. Step 2: Convert to fraction form
    49,861.32/74,792.30 = 12,421.48/x
  3. Step 3: Cross multiply
    49,861.32x = 74,792.30 × 12,421.48
  4. Step 4: Simplify right side
    49,861.32x = 929,031,058.60
  5. Step 5: Solve for x
    x = 929,031,058.60/49,861.32
  6. Step 6: Final answer
    x = 18,632.30

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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.