Home / 76,895.10-115,342.65-47,216.70

Finding the Fourth Proportional to 76,895.10, 115,342.65 and 47,216.70

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Solution

The fourth proportional to 76,895.10, 115,342.65 and 47,216.70 is: 70,825.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,895.10 : 115,342.65 = 47,216.70 : x
  2. Step 2: Convert to fraction form
    76,895.10/115,342.65 = 47,216.70/x
  3. Step 3: Cross multiply
    76,895.10x = 115,342.65 × 47,216.70
  4. Step 4: Simplify right side
    76,895.10x = 5,446,099,302.26
  5. Step 5: Solve for x
    x = 5,446,099,302.26/76,895.10
  6. Step 6: Final answer
    x = 70,825.05

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.