Home / 70,140.32-105,243.28-40,583.01

Finding the Fourth Proportional to 70,140.32, 105,243.28 and 40,583.01

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Solution

The fourth proportional to 70,140.32, 105,243.28 and 40,583.01 is: 60,893.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,140.32 : 105,243.28 = 40,583.01 : x
  2. Step 2: Convert to fraction form
    70,140.32/105,243.28 = 40,583.01/x
  3. Step 3: Cross multiply
    70,140.32x = 105,243.28 × 40,583.01
  4. Step 4: Simplify right side
    70,140.32x = 4,271,089,084.67
  5. Step 5: Solve for x
    x = 4,271,089,084.67/70,140.32
  6. Step 6: Final answer
    x = 60,893.49

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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.