Home / 76,511.16-105,552.72-47,811.30

Finding the Fourth Proportional to 76,511.16, 105,552.72 and 47,811.30

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Solution

The fourth proportional to 76,511.16, 105,552.72 and 47,811.30 is: 65,959.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,511.16 : 105,552.72 = 47,811.30 : x
  2. Step 2: Convert to fraction form
    76,511.16/105,552.72 = 47,811.30/x
  3. Step 3: Cross multiply
    76,511.16x = 105,552.72 × 47,811.30
  4. Step 4: Simplify right side
    76,511.16x = 5,046,612,761.74
  5. Step 5: Solve for x
    x = 5,046,612,761.74/76,511.16
  6. Step 6: Final answer
    x = 65,959.17

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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.