Home / 74,017.02-102,142.98-40,483.02

Finding the Fourth Proportional to 74,017.02, 102,142.98 and 40,483.02

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Solution

The fourth proportional to 74,017.02, 102,142.98 and 40,483.02 is: 55,866.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,017.02 : 102,142.98 = 40,483.02 : x
  2. Step 2: Convert to fraction form
    74,017.02/102,142.98 = 40,483.02/x
  3. Step 3: Cross multiply
    74,017.02x = 102,142.98 × 40,483.02
  4. Step 4: Simplify right side
    74,017.02x = 4,135,056,302.20
  5. Step 5: Solve for x
    x = 4,135,056,302.20/74,017.02
  6. Step 6: Final answer
    x = 55,866.29

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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.