Home / 70,319.18-105,489.72-23,561.12

Finding the Fourth Proportional to 70,319.18, 105,489.72 and 23,561.12

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Solution

The fourth proportional to 70,319.18, 105,489.72 and 23,561.12 is: 35,345.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,319.18 : 105,489.72 = 23,561.12 : x
  2. Step 2: Convert to fraction form
    70,319.18/105,489.72 = 23,561.12/x
  3. Step 3: Cross multiply
    70,319.18x = 105,489.72 × 23,561.12
  4. Step 4: Simplify right side
    70,319.18x = 2,485,455,424.24
  5. Step 5: Solve for x
    x = 2,485,455,424.24/70,319.18
  6. Step 6: Final answer
    x = 35,345.34

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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.