Home / 51,021.06-70,405.02-28,358.28

Finding the Fourth Proportional to 51,021.06, 70,405.02 and 28,358.28

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Solution

The fourth proportional to 51,021.06, 70,405.02 and 28,358.28 is: 39,132.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,021.06 : 70,405.02 = 28,358.28 : x
  2. Step 2: Convert to fraction form
    51,021.06/70,405.02 = 28,358.28/x
  3. Step 3: Cross multiply
    51,021.06x = 70,405.02 × 28,358.28
  4. Step 4: Simplify right side
    51,021.06x = 1,996,565,270.57
  5. Step 5: Solve for x
    x = 1,996,565,270.57/51,021.06
  6. Step 6: Final answer
    x = 39,132.18

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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.