Home / 74,058.36-102,200.10-40,066.74

Finding the Fourth Proportional to 74,058.36, 102,200.10 and 40,066.74

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Solution

The fourth proportional to 74,058.36, 102,200.10 and 40,066.74 is: 55,291.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,058.36 : 102,200.10 = 40,066.74 : x
  2. Step 2: Convert to fraction form
    74,058.36/102,200.10 = 40,066.74/x
  3. Step 3: Cross multiply
    74,058.36x = 102,200.10 × 40,066.74
  4. Step 4: Simplify right side
    74,058.36x = 4,094,824,834.67
  5. Step 5: Solve for x
    x = 4,094,824,834.67/74,058.36
  6. Step 6: Final answer
    x = 55,291.86

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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.