Home / 85,284.28-117,740.49-56,653.03

Finding the Fourth Proportional to 85,284.28, 117,740.49 and 56,653.03

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Solution

The fourth proportional to 85,284.28, 117,740.49 and 56,653.03 is: 78,213.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,284.28 : 117,740.49 = 56,653.03 : x
  2. Step 2: Convert to fraction form
    85,284.28/117,740.49 = 56,653.03/x
  3. Step 3: Cross multiply
    85,284.28x = 117,740.49 × 56,653.03
  4. Step 4: Simplify right side
    85,284.28x = 6,670,354,923.48
  5. Step 5: Solve for x
    x = 6,670,354,923.48/85,284.28
  6. Step 6: Final answer
    x = 78,213.19

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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.