Home / 48,287.40-72,431.10-42,450.60

Finding the Fourth Proportional to 48,287.40, 72,431.10 and 42,450.60

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Solution

The fourth proportional to 48,287.40, 72,431.10 and 42,450.60 is: 63,675.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,287.40 : 72,431.10 = 42,450.60 : x
  2. Step 2: Convert to fraction form
    48,287.40/72,431.10 = 42,450.60/x
  3. Step 3: Cross multiply
    48,287.40x = 72,431.10 × 42,450.60
  4. Step 4: Simplify right side
    48,287.40x = 3,074,743,653.66
  5. Step 5: Solve for x
    x = 3,074,743,653.66/48,287.40
  6. Step 6: Final answer
    x = 63,675.90

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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.