Home / 51,722.40-71,386.20-30,500.40

Finding the Fourth Proportional to 51,722.40, 71,386.20 and 30,500.40

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Solution

The fourth proportional to 51,722.40, 71,386.20 and 30,500.40 is: 42,096.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,722.40 : 71,386.20 = 30,500.40 : x
  2. Step 2: Convert to fraction form
    51,722.40/71,386.20 = 30,500.40/x
  3. Step 3: Cross multiply
    51,722.40x = 71,386.20 × 30,500.40
  4. Step 4: Simplify right side
    51,722.40x = 2,177,307,654.48
  5. Step 5: Solve for x
    x = 2,177,307,654.48/51,722.40
  6. Step 6: Final answer
    x = 42,096.03

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1.5x scale

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.