Home / 74,656.02-103,023.77-40,665.12

Finding the Fourth Proportional to 74,656.02, 103,023.77 and 40,665.12

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Solution

The fourth proportional to 74,656.02, 103,023.77 and 40,665.12 is: 56,117.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,656.02 : 103,023.77 = 40,665.12 : x
  2. Step 2: Convert to fraction form
    74,656.02/103,023.77 = 40,665.12/x
  3. Step 3: Cross multiply
    74,656.02x = 103,023.77 × 40,665.12
  4. Step 4: Simplify right side
    74,656.02x = 4,189,473,380.24
  5. Step 5: Solve for x
    x = 4,189,473,380.24/74,656.02
  6. Step 6: Final answer
    x = 56,117.02

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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.