Home / 62,681.28-94,022.24-21,128.64

Finding the Fourth Proportional to 62,681.28, 94,022.24 and 21,128.64

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Solution

The fourth proportional to 62,681.28, 94,022.24 and 21,128.64 is: 31,693.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,681.28 : 94,022.24 = 21,128.64 : x
  2. Step 2: Convert to fraction form
    62,681.28/94,022.24 = 21,128.64/x
  3. Step 3: Cross multiply
    62,681.28x = 94,022.24 × 21,128.64
  4. Step 4: Simplify right side
    62,681.28x = 1,986,562,060.95
  5. Step 5: Solve for x
    x = 1,986,562,060.95/62,681.28
  6. Step 6: Final answer
    x = 31,693.07

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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.