Home / 70,541.40-105,819.27-20,622.42

Finding the Fourth Proportional to 70,541.40, 105,819.27 and 20,622.42

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Solution

The fourth proportional to 70,541.40, 105,819.27 and 20,622.42 is: 30,935.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,541.40 : 105,819.27 = 20,622.42 : x
  2. Step 2: Convert to fraction form
    70,541.40/105,819.27 = 20,622.42/x
  3. Step 3: Cross multiply
    70,541.40x = 105,819.27 × 20,622.42
  4. Step 4: Simplify right side
    70,541.40x = 2,182,249,430.03
  5. Step 5: Solve for x
    x = 2,182,249,430.03/70,541.40
  6. Step 6: Final answer
    x = 30,935.73

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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.