Home / 74,122.83-111,119.18-38,509.16

Finding the Fourth Proportional to 74,122.83, 111,119.18 and 38,509.16

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Solution

The fourth proportional to 74,122.83, 111,119.18 and 38,509.16 is: 57,729.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,122.83 : 111,119.18 = 38,509.16 : x
  2. Step 2: Convert to fraction form
    74,122.83/111,119.18 = 38,509.16/x
  3. Step 3: Cross multiply
    74,122.83x = 111,119.18 × 38,509.16
  4. Step 4: Simplify right side
    74,122.83x = 4,279,105,533.55
  5. Step 5: Solve for x
    x = 4,279,105,533.55/74,122.83
  6. Step 6: Final answer
    x = 57,729.93

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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.