Home / 76,731.32-105,852.55-59,618.45

Finding the Fourth Proportional to 76,731.32, 105,852.55 and 59,618.45

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Solution

The fourth proportional to 76,731.32, 105,852.55 and 59,618.45 is: 82,244.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,731.32 : 105,852.55 = 59,618.45 : x
  2. Step 2: Convert to fraction form
    76,731.32/105,852.55 = 59,618.45/x
  3. Step 3: Cross multiply
    76,731.32x = 105,852.55 × 59,618.45
  4. Step 4: Simplify right side
    76,731.32x = 6,310,764,959.55
  5. Step 5: Solve for x
    x = 6,310,764,959.55/76,731.32
  6. Step 6: Final answer
    x = 82,244.97

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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.