Home / 76,246.02-105,219.52-42,712.02

Finding the Fourth Proportional to 76,246.02, 105,219.52 and 42,712.02

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Solution

The fourth proportional to 76,246.02, 105,219.52 and 42,712.02 is: 58,942.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,246.02 : 105,219.52 = 42,712.02 : x
  2. Step 2: Convert to fraction form
    76,246.02/105,219.52 = 42,712.02/x
  3. Step 3: Cross multiply
    76,246.02x = 105,219.52 × 42,712.02
  4. Step 4: Simplify right side
    76,246.02x = 4,494,138,242.63
  5. Step 5: Solve for x
    x = 4,494,138,242.63/76,246.02
  6. Step 6: Final answer
    x = 58,942.59

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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.