Home / 48,990.12-67,638.84-37,639.32

Finding the Fourth Proportional to 48,990.12, 67,638.84 and 37,639.32

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Solution

The fourth proportional to 48,990.12, 67,638.84 and 37,639.32 is: 51,967.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,990.12 : 67,638.84 = 37,639.32 : x
  2. Step 2: Convert to fraction form
    48,990.12/67,638.84 = 37,639.32/x
  3. Step 3: Cross multiply
    48,990.12x = 67,638.84 × 37,639.32
  4. Step 4: Simplify right side
    48,990.12x = 2,545,879,943.19
  5. Step 5: Solve for x
    x = 2,545,879,943.19/48,990.12
  6. Step 6: Final answer
    x = 51,967.21

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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.