Home / 70,258.10-105,421.74-32,812.70

Finding the Fourth Proportional to 70,258.10, 105,421.74 and 32,812.70

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Solution

The fourth proportional to 70,258.10, 105,421.74 and 32,812.70 is: 49,235.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,258.10 : 105,421.74 = 32,812.70 : x
  2. Step 2: Convert to fraction form
    70,258.10/105,421.74 = 32,812.70/x
  3. Step 3: Cross multiply
    70,258.10x = 105,421.74 × 32,812.70
  4. Step 4: Simplify right side
    70,258.10x = 3,459,171,928.10
  5. Step 5: Solve for x
    x = 3,459,171,928.10/70,258.10
  6. Step 6: Final answer
    x = 49,235.20

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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.