Home / 85,682.23-118,284.39-53,868.67

Finding the Fourth Proportional to 85,682.23, 118,284.39 and 53,868.67

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Solution

The fourth proportional to 85,682.23, 118,284.39 and 53,868.67 is: 74,365.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,682.23 : 118,284.39 = 53,868.67 : x
  2. Step 2: Convert to fraction form
    85,682.23/118,284.39 = 53,868.67/x
  3. Step 3: Cross multiply
    85,682.23x = 118,284.39 × 53,868.67
  4. Step 4: Simplify right side
    85,682.23x = 6,371,822,771.06
  5. Step 5: Solve for x
    x = 6,371,822,771.06/85,682.23
  6. Step 6: Final answer
    x = 74,365.74

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1.5x scale

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.