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Finding the Fourth Proportional to 76,599.54, 105,706.32 and 43,065.54

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Solution

The fourth proportional to 76,599.54, 105,706.32 and 43,065.54 is: 59,429.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,599.54 : 105,706.32 = 43,065.54 : x
  2. Step 2: Convert to fraction form
    76,599.54/105,706.32 = 43,065.54/x
  3. Step 3: Cross multiply
    76,599.54x = 105,706.32 × 43,065.54
  4. Step 4: Simplify right side
    76,599.54x = 4,552,299,752.21
  5. Step 5: Solve for x
    x = 4,552,299,752.21/76,599.54
  6. Step 6: Final answer
    x = 59,429.86

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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.