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Finding the Fourth Proportional to 51,758.80, 77,621.56 and 16,690.25

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Solution

The fourth proportional to 51,758.80, 77,621.56 and 16,690.25 is: 25,030.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,758.80 : 77,621.56 = 16,690.25 : x
  2. Step 2: Convert to fraction form
    51,758.80/77,621.56 = 16,690.25/x
  3. Step 3: Cross multiply
    51,758.80x = 77,621.56 × 16,690.25
  4. Step 4: Simplify right side
    51,758.80x = 1,295,523,394.12
  5. Step 5: Solve for x
    x = 1,295,523,394.12/51,758.80
  6. Step 6: Final answer
    x = 25,030.01

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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.