Home / 74,509.07-111,763.46-52,421.18

Finding the Fourth Proportional to 74,509.07, 111,763.46 and 52,421.18

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Solution

The fourth proportional to 74,509.07, 111,763.46 and 52,421.18 is: 78,631.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,509.07 : 111,763.46 = 52,421.18 : x
  2. Step 2: Convert to fraction form
    74,509.07/111,763.46 = 52,421.18/x
  3. Step 3: Cross multiply
    74,509.07x = 111,763.46 × 52,421.18
  4. Step 4: Simplify right side
    74,509.07x = 5,858,772,026.32
  5. Step 5: Solve for x
    x = 5,858,772,026.32/74,509.07
  6. Step 6: Final answer
    x = 78,631.67

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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.