Home / 45,457.32-68,158.88-18,782.58

Finding the Fourth Proportional to 45,457.32, 68,158.88 and 18,782.58

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Solution

The fourth proportional to 45,457.32, 68,158.88 and 18,782.58 is: 28,162.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,457.32 : 68,158.88 = 18,782.58 : x
  2. Step 2: Convert to fraction form
    45,457.32/68,158.88 = 18,782.58/x
  3. Step 3: Cross multiply
    45,457.32x = 68,158.88 × 18,782.58
  4. Step 4: Simplify right side
    45,457.32x = 1,280,199,616.31
  5. Step 5: Solve for x
    x = 1,280,199,616.31/45,457.32
  6. Step 6: Final answer
    x = 28,162.67

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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.