Home / 60,730.28-91,136.08-21,287.38

Finding the Fourth Proportional to 60,730.28, 91,136.08 and 21,287.38

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Solution

The fourth proportional to 60,730.28, 91,136.08 and 21,287.38 is: 31,945.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,730.28 : 91,136.08 = 21,287.38 : x
  2. Step 2: Convert to fraction form
    60,730.28/91,136.08 = 21,287.38/x
  3. Step 3: Cross multiply
    60,730.28x = 91,136.08 × 21,287.38
  4. Step 4: Simplify right side
    60,730.28x = 1,940,048,085.61
  5. Step 5: Solve for x
    x = 1,940,048,085.61/60,730.28
  6. Step 6: Final answer
    x = 31,945.32

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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.