Home / 51,731.61-71,387.32-30,223.35

Finding the Fourth Proportional to 51,731.61, 71,387.32 and 30,223.35

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Solution

The fourth proportional to 51,731.61, 71,387.32 and 30,223.35 is: 41,706.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,731.61 : 71,387.32 = 30,223.35 : x
  2. Step 2: Convert to fraction form
    51,731.61/71,387.32 = 30,223.35/x
  3. Step 3: Cross multiply
    51,731.61x = 71,387.32 × 30,223.35
  4. Step 4: Simplify right side
    51,731.61x = 2,157,563,957.92
  5. Step 5: Solve for x
    x = 2,157,563,957.92/51,731.61
  6. Step 6: Final answer
    x = 41,706.88

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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.