Home / 51,307.18-70,804.20-30,086.80

Finding the Fourth Proportional to 51,307.18, 70,804.20 and 30,086.80

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Solution

The fourth proportional to 51,307.18, 70,804.20 and 30,086.80 is: 41,519.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,307.18 : 70,804.20 = 30,086.80 : x
  2. Step 2: Convert to fraction form
    51,307.18/70,804.20 = 30,086.80/x
  3. Step 3: Cross multiply
    51,307.18x = 70,804.20 × 30,086.80
  4. Step 4: Simplify right side
    51,307.18x = 2,130,271,804.56
  5. Step 5: Solve for x
    x = 2,130,271,804.56/51,307.18
  6. Step 6: Final answer
    x = 41,519.95

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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.