Home / 76,484.02-105,586.32-47,819.61

Finding the Fourth Proportional to 76,484.02, 105,586.32 and 47,819.61

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Solution

The fourth proportional to 76,484.02, 105,586.32 and 47,819.61 is: 66,015.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,484.02 : 105,586.32 = 47,819.61 : x
  2. Step 2: Convert to fraction form
    76,484.02/105,586.32 = 47,819.61/x
  3. Step 3: Cross multiply
    76,484.02x = 105,586.32 × 47,819.61
  4. Step 4: Simplify right side
    76,484.02x = 5,049,096,643.74
  5. Step 5: Solve for x
    x = 5,049,096,643.74/76,484.02
  6. Step 6: Final answer
    x = 66,015.05

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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.