Home / 44,720.10-66,970.80-21,319.20

Finding the Fourth Proportional to 44,720.10, 66,970.80 and 21,319.20

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Solution

The fourth proportional to 44,720.10, 66,970.80 and 21,319.20 is: 31,926.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    44,720.10 : 66,970.80 = 21,319.20 : x
  2. Step 2: Convert to fraction form
    44,720.10/66,970.80 = 21,319.20/x
  3. Step 3: Cross multiply
    44,720.10x = 66,970.80 × 21,319.20
  4. Step 4: Simplify right side
    44,720.10x = 1,427,763,879.36
  5. Step 5: Solve for x
    x = 1,427,763,879.36/44,720.10
  6. Step 6: Final answer
    x = 31,926.67

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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.