Home / 51,901.06-77,851.60-20,758.18

Finding the Fourth Proportional to 51,901.06, 77,851.60 and 20,758.18

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Solution

The fourth proportional to 51,901.06, 77,851.60 and 20,758.18 is: 31,137.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,901.06 : 77,851.60 = 20,758.18 : x
  2. Step 2: Convert to fraction form
    51,901.06/77,851.60 = 20,758.18/x
  3. Step 3: Cross multiply
    51,901.06x = 77,851.60 × 20,758.18
  4. Step 4: Simplify right side
    51,901.06x = 1,616,057,526.09
  5. Step 5: Solve for x
    x = 1,616,057,526.09/51,901.06
  6. Step 6: Final answer
    x = 31,137.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.