Home / 78,599.12-108,480.88-50,303.84

Finding the Fourth Proportional to 78,599.12, 108,480.88 and 50,303.84

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Solution

The fourth proportional to 78,599.12, 108,480.88 and 50,303.84 is: 69,428.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,599.12 : 108,480.88 = 50,303.84 : x
  2. Step 2: Convert to fraction form
    78,599.12/108,480.88 = 50,303.84/x
  3. Step 3: Cross multiply
    78,599.12x = 108,480.88 × 50,303.84
  4. Step 4: Simplify right side
    78,599.12x = 5,457,004,830.58
  5. Step 5: Solve for x
    x = 5,457,004,830.58/78,599.12
  6. Step 6: Final answer
    x = 69,428.32

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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.