Home / 76,352.32-105,366-42,819.04

Finding the Fourth Proportional to 76,352.32, 105,366 and 42,819.04

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Solution

The fourth proportional to 76,352.32, 105,366 and 42,819.04 is: 59,090.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,352.32 : 105,366 = 42,819.04 : x
  2. Step 2: Convert to fraction form
    76,352.32/105,366 = 42,819.04/x
  3. Step 3: Cross multiply
    76,352.32x = 105,366 × 42,819.04
  4. Step 4: Simplify right side
    76,352.32x = 4,511,670,968.64
  5. Step 5: Solve for x
    x = 4,511,670,968.64/76,352.32
  6. Step 6: Final answer
    x = 59,090.16

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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.