Home / 285,127.75-427,675.02-74,765.62

Finding the Fourth Proportional to 285,127.75, 427,675.02 and 74,765.62

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Solution

The fourth proportional to 285,127.75, 427,675.02 and 74,765.62 is: 112,144.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    285,127.75 : 427,675.02 = 74,765.62 : x
  2. Step 2: Convert to fraction form
    285,127.75/427,675.02 = 74,765.62/x
  3. Step 3: Cross multiply
    285,127.75x = 427,675.02 × 74,765.62
  4. Step 4: Simplify right side
    285,127.75x = 31,975,388,028.81
  5. Step 5: Solve for x
    x = 31,975,388,028.81/285,127.75
  6. Step 6: Final answer
    x = 112,144.08

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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.