Home / 78,266.96-117,198.48-51,889.04

Finding the Fourth Proportional to 78,266.96, 117,198.48 and 51,889.04

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Solution

The fourth proportional to 78,266.96, 117,198.48 and 51,889.04 is: 77,699.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,266.96 : 117,198.48 = 51,889.04 : x
  2. Step 2: Convert to fraction form
    78,266.96/117,198.48 = 51,889.04/x
  3. Step 3: Cross multiply
    78,266.96x = 117,198.48 × 51,889.04
  4. Step 4: Simplify right side
    78,266.96x = 6,081,316,616.66
  5. Step 5: Solve for x
    x = 6,081,316,616.66/78,266.96
  6. Step 6: Final answer
    x = 77,699.67

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1.5x scale

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.