Home / 67,990.64-93,800.88-50,128.04

Finding the Fourth Proportional to 67,990.64, 93,800.88 and 50,128.04

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Solution

The fourth proportional to 67,990.64, 93,800.88 and 50,128.04 is: 69,157.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,990.64 : 93,800.88 = 50,128.04 : x
  2. Step 2: Convert to fraction form
    67,990.64/93,800.88 = 50,128.04/x
  3. Step 3: Cross multiply
    67,990.64x = 93,800.88 × 50,128.04
  4. Step 4: Simplify right side
    67,990.64x = 4,702,054,264.68
  5. Step 5: Solve for x
    x = 4,702,054,264.68/67,990.64
  6. Step 6: Final answer
    x = 69,157.38

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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.