Home / 76,701.04-105,880.09-51,565.12

Finding the Fourth Proportional to 76,701.04, 105,880.09 and 51,565.12

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Solution

The fourth proportional to 76,701.04, 105,880.09 and 51,565.12 is: 71,181.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,701.04 : 105,880.09 = 51,565.12 : x
  2. Step 2: Convert to fraction form
    76,701.04/105,880.09 = 51,565.12/x
  3. Step 3: Cross multiply
    76,701.04x = 105,880.09 × 51,565.12
  4. Step 4: Simplify right side
    76,701.04x = 5,459,719,546.46
  5. Step 5: Solve for x
    x = 5,459,719,546.46/76,701.04
  6. Step 6: Final answer
    x = 71,181.82

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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.