Home / 70,389.22-105,599.40-38,783.01

Finding the Fourth Proportional to 70,389.22, 105,599.40 and 38,783.01

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Solution

The fourth proportional to 70,389.22, 105,599.40 and 38,783.01 is: 58,183.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,389.22 : 105,599.40 = 38,783.01 : x
  2. Step 2: Convert to fraction form
    70,389.22/105,599.40 = 38,783.01/x
  3. Step 3: Cross multiply
    70,389.22x = 105,599.40 × 38,783.01
  4. Step 4: Simplify right side
    70,389.22x = 4,095,462,586.19
  5. Step 5: Solve for x
    x = 4,095,462,586.19/70,389.22
  6. Step 6: Final answer
    x = 58,183.09

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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.