Home / 66,018.03-91,083.87-40,498.17

Finding the Fourth Proportional to 66,018.03, 91,083.87 and 40,498.17

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Solution

The fourth proportional to 66,018.03, 91,083.87 and 40,498.17 is: 55,874.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,018.03 : 91,083.87 = 40,498.17 : x
  2. Step 2: Convert to fraction form
    66,018.03/91,083.87 = 40,498.17/x
  3. Step 3: Cross multiply
    66,018.03x = 91,083.87 × 40,498.17
  4. Step 4: Simplify right side
    66,018.03x = 3,688,730,051.52
  5. Step 5: Solve for x
    x = 3,688,730,051.52/66,018.03
  6. Step 6: Final answer
    x = 55,874.59

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1.5x scale

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.