Home / 51,080.28-70,492.14-30,940.80

Finding the Fourth Proportional to 51,080.28, 70,492.14 and 30,940.80

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Solution

The fourth proportional to 51,080.28, 70,492.14 and 30,940.80 is: 42,699.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,080.28 : 70,492.14 = 30,940.80 : x
  2. Step 2: Convert to fraction form
    51,080.28/70,492.14 = 30,940.80/x
  3. Step 3: Cross multiply
    51,080.28x = 70,492.14 × 30,940.80
  4. Step 4: Simplify right side
    51,080.28x = 2,181,083,205.31
  5. Step 5: Solve for x
    x = 2,181,083,205.31/51,080.28
  6. Step 6: Final answer
    x = 42,699.12

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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.