Home / 74,874.06-112,279.91-30,470.67

Finding the Fourth Proportional to 74,874.06, 112,279.91 and 30,470.67

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Solution

The fourth proportional to 74,874.06, 112,279.91 and 30,470.67 is: 45,693.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,874.06 : 112,279.91 = 30,470.67 : x
  2. Step 2: Convert to fraction form
    74,874.06/112,279.91 = 30,470.67/x
  3. Step 3: Cross multiply
    74,874.06x = 112,279.91 × 30,470.67
  4. Step 4: Simplify right side
    74,874.06x = 3,421,243,932.89
  5. Step 5: Solve for x
    x = 3,421,243,932.89/74,874.06
  6. Step 6: Final answer
    x = 45,693.31

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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.