Home / 76,851.18-114,700.86-67,490.82

Finding the Fourth Proportional to 76,851.18, 114,700.86 and 67,490.82

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Solution

The fourth proportional to 76,851.18, 114,700.86 and 67,490.82 is: 100,730.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,851.18 : 114,700.86 = 67,490.82 : x
  2. Step 2: Convert to fraction form
    76,851.18/114,700.86 = 67,490.82/x
  3. Step 3: Cross multiply
    76,851.18x = 114,700.86 × 67,490.82
  4. Step 4: Simplify right side
    76,851.18x = 7,741,255,096.11
  5. Step 5: Solve for x
    x = 7,741,255,096.11/76,851.18
  6. Step 6: Final answer
    x = 100,730.46

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.