Home / 74,247.61-111,429.74-40,990.63

Finding the Fourth Proportional to 74,247.61, 111,429.74 and 40,990.63

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Solution

The fourth proportional to 74,247.61, 111,429.74 and 40,990.63 is: 61,518.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,247.61 : 111,429.74 = 40,990.63 : x
  2. Step 2: Convert to fraction form
    74,247.61/111,429.74 = 40,990.63/x
  3. Step 3: Cross multiply
    74,247.61x = 111,429.74 × 40,990.63
  4. Step 4: Simplify right side
    74,247.61x = 4,567,575,243.34
  5. Step 5: Solve for x
    x = 4,567,575,243.34/74,247.61
  6. Step 6: Final answer
    x = 61,518.15

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.