Home / 51,639.42-71,263.08-28,983.32

Finding the Fourth Proportional to 51,639.42, 71,263.08 and 28,983.32

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Solution

The fourth proportional to 51,639.42, 71,263.08 and 28,983.32 is: 39,997.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,639.42 : 71,263.08 = 28,983.32 : x
  2. Step 2: Convert to fraction form
    51,639.42/71,263.08 = 28,983.32/x
  3. Step 3: Cross multiply
    51,639.42x = 71,263.08 × 28,983.32
  4. Step 4: Simplify right side
    51,639.42x = 2,065,440,295.51
  5. Step 5: Solve for x
    x = 2,065,440,295.51/51,639.42
  6. Step 6: Final answer
    x = 39,997.36

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.