Home / 45,502.96-68,140.50-28,812.64

Finding the Fourth Proportional to 45,502.96, 68,140.50 and 28,812.64

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Solution

The fourth proportional to 45,502.96, 68,140.50 and 28,812.64 is: 43,146.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,502.96 : 68,140.50 = 28,812.64 : x
  2. Step 2: Convert to fraction form
    45,502.96/68,140.50 = 28,812.64/x
  3. Step 3: Cross multiply
    45,502.96x = 68,140.50 × 28,812.64
  4. Step 4: Simplify right side
    45,502.96x = 1,963,307,695.92
  5. Step 5: Solve for x
    x = 1,963,307,695.92/45,502.96
  6. Step 6: Final answer
    x = 43,146.81

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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.