Home / 76,535.45-105,609.89-45,485.86

Finding the Fourth Proportional to 76,535.45, 105,609.89 and 45,485.86

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Solution

The fourth proportional to 76,535.45, 105,609.89 and 45,485.86 is: 62,765.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,535.45 : 105,609.89 = 45,485.86 : x
  2. Step 2: Convert to fraction form
    76,535.45/105,609.89 = 45,485.86/x
  3. Step 3: Cross multiply
    76,535.45x = 105,609.89 × 45,485.86
  4. Step 4: Simplify right side
    76,535.45x = 4,803,756,256.82
  5. Step 5: Solve for x
    x = 4,803,756,256.82/76,535.45
  6. Step 6: Final answer
    x = 62,765.12

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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.