Home / 45,012.56-67,518.81-15,430.64

Finding the Fourth Proportional to 45,012.56, 67,518.81 and 15,430.64

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Solution

The fourth proportional to 45,012.56, 67,518.81 and 15,430.64 is: 23,145.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,012.56 : 67,518.81 = 15,430.64 : x
  2. Step 2: Convert to fraction form
    45,012.56/67,518.81 = 15,430.64/x
  3. Step 3: Cross multiply
    45,012.56x = 67,518.81 × 15,430.64
  4. Step 4: Simplify right side
    45,012.56x = 1,041,858,450.34
  5. Step 5: Solve for x
    x = 1,041,858,450.34/45,012.56
  6. Step 6: Final answer
    x = 23,145.95

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1.5x scale

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.