Home / 49,478.31-68,270.45-40,030.47

Finding the Fourth Proportional to 49,478.31, 68,270.45 and 40,030.47

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Solution

The fourth proportional to 49,478.31, 68,270.45 and 40,030.47 is: 55,234.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,478.31 : 68,270.45 = 40,030.47 : x
  2. Step 2: Convert to fraction form
    49,478.31/68,270.45 = 40,030.47/x
  3. Step 3: Cross multiply
    49,478.31x = 68,270.45 × 40,030.47
  4. Step 4: Simplify right side
    49,478.31x = 2,732,898,000.46
  5. Step 5: Solve for x
    x = 2,732,898,000.46/49,478.31
  6. Step 6: Final answer
    x = 55,234.26

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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.