Home / 74,051.32-102,188.28-42,230.46

Finding the Fourth Proportional to 74,051.32, 102,188.28 and 42,230.46

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Solution

The fourth proportional to 74,051.32, 102,188.28 and 42,230.46 is: 58,276.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,051.32 : 102,188.28 = 42,230.46 : x
  2. Step 2: Convert to fraction form
    74,051.32/102,188.28 = 42,230.46/x
  3. Step 3: Cross multiply
    74,051.32x = 102,188.28 × 42,230.46
  4. Step 4: Simplify right side
    74,051.32x = 4,315,458,071.01
  5. Step 5: Solve for x
    x = 4,315,458,071.01/74,051.32
  6. Step 6: Final answer
    x = 58,276.59

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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.