Home / 51,188.46-70,638.36-29,678.60

Finding the Fourth Proportional to 51,188.46, 70,638.36 and 29,678.60

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Solution

The fourth proportional to 51,188.46, 70,638.36 and 29,678.60 is: 40,955.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,188.46 : 70,638.36 = 29,678.60 : x
  2. Step 2: Convert to fraction form
    51,188.46/70,638.36 = 29,678.60/x
  3. Step 3: Cross multiply
    51,188.46x = 70,638.36 × 29,678.60
  4. Step 4: Simplify right side
    51,188.46x = 2,096,447,631.10
  5. Step 5: Solve for x
    x = 2,096,447,631.10/51,188.46
  6. Step 6: Final answer
    x = 40,955.48

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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.