Home / 76,528.16-114,870-54,366.56

Finding the Fourth Proportional to 76,528.16, 114,870 and 54,366.56

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Solution

The fourth proportional to 76,528.16, 114,870 and 54,366.56 is: 81,605.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,528.16 : 114,870 = 54,366.56 : x
  2. Step 2: Convert to fraction form
    76,528.16/114,870 = 54,366.56/x
  3. Step 3: Cross multiply
    76,528.16x = 114,870 × 54,366.56
  4. Step 4: Simplify right side
    76,528.16x = 6,245,086,747.20
  5. Step 5: Solve for x
    x = 6,245,086,747.20/76,528.16
  6. Step 6: Final answer
    x = 81,605.08

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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.