Home / 62,688.28-94,032.74-21,135.64

Finding the Fourth Proportional to 62,688.28, 94,032.74 and 21,135.64

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Solution

The fourth proportional to 62,688.28, 94,032.74 and 21,135.64 is: 31,703.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,688.28 : 94,032.74 = 21,135.64 : x
  2. Step 2: Convert to fraction form
    62,688.28/94,032.74 = 21,135.64/x
  3. Step 3: Cross multiply
    62,688.28x = 94,032.74 × 21,135.64
  4. Step 4: Simplify right side
    62,688.28x = 1,987,442,140.85
  5. Step 5: Solve for x
    x = 1,987,442,140.85/62,688.28
  6. Step 6: Final answer
    x = 31,703.57

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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.