Home / 27,136.02-40,702.70-7,145.04

Finding the Fourth Proportional to 27,136.02, 40,702.70 and 7,145.04

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Solution

The fourth proportional to 27,136.02, 40,702.70 and 7,145.04 is: 10,717.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    27,136.02 : 40,702.70 = 7,145.04 : x
  2. Step 2: Convert to fraction form
    27,136.02/40,702.70 = 7,145.04/x
  3. Step 3: Cross multiply
    27,136.02x = 40,702.70 × 7,145.04
  4. Step 4: Simplify right side
    27,136.02x = 290,822,419.61
  5. Step 5: Solve for x
    x = 290,822,419.61/27,136.02
  6. Step 6: Final answer
    x = 10,717.21

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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.