Home / 45,459.81-68,162.63-18,785.07

Finding the Fourth Proportional to 45,459.81, 68,162.63 and 18,785.07

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Solution

The fourth proportional to 45,459.81, 68,162.63 and 18,785.07 is: 28,166.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,459.81 : 68,162.63 = 18,785.07 : x
  2. Step 2: Convert to fraction form
    45,459.81/68,162.63 = 18,785.07/x
  3. Step 3: Cross multiply
    45,459.81x = 68,162.63 × 18,785.07
  4. Step 4: Simplify right side
    45,459.81x = 1,280,439,682.01
  5. Step 5: Solve for x
    x = 1,280,439,682.01/45,459.81
  6. Step 6: Final answer
    x = 28,166.41

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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.