Home / 51,386.28-70,911.90-30,167.52

Finding the Fourth Proportional to 51,386.28, 70,911.90 and 30,167.52

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Solution

The fourth proportional to 51,386.28, 70,911.90 and 30,167.52 is: 41,630.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,386.28 : 70,911.90 = 30,167.52 : x
  2. Step 2: Convert to fraction form
    51,386.28/70,911.90 = 30,167.52/x
  3. Step 3: Cross multiply
    51,386.28x = 70,911.90 × 30,167.52
  4. Step 4: Simplify right side
    51,386.28x = 2,139,236,161.49
  5. Step 5: Solve for x
    x = 2,139,236,161.49/51,386.28
  6. Step 6: Final answer
    x = 41,630.49

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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.