Home / 76,898.40-115,230.72-57,084

Finding the Fourth Proportional to 76,898.40, 115,230.72 and 57,084

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Solution

The fourth proportional to 76,898.40, 115,230.72 and 57,084 is: 85,539.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,898.40 : 115,230.72 = 57,084 : x
  2. Step 2: Convert to fraction form
    76,898.40/115,230.72 = 57,084/x
  3. Step 3: Cross multiply
    76,898.40x = 115,230.72 × 57,084
  4. Step 4: Simplify right side
    76,898.40x = 6,577,830,420.48
  5. Step 5: Solve for x
    x = 6,577,830,420.48/76,898.40
  6. Step 6: Final answer
    x = 85,539.24

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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.