Home / 61,720.56-85,094.82-50,378.40

Finding the Fourth Proportional to 61,720.56, 85,094.82 and 50,378.40

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Solution

The fourth proportional to 61,720.56, 85,094.82 and 50,378.40 is: 69,457.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,720.56 : 85,094.82 = 50,378.40 : x
  2. Step 2: Convert to fraction form
    61,720.56/85,094.82 = 50,378.40/x
  3. Step 3: Cross multiply
    61,720.56x = 85,094.82 × 50,378.40
  4. Step 4: Simplify right side
    61,720.56x = 4,286,940,879.89
  5. Step 5: Solve for x
    x = 4,286,940,879.89/61,720.56
  6. Step 6: Final answer
    x = 69,457.26

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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.