Home / 77,318.76-106,698.08-45,489.72

Finding the Fourth Proportional to 77,318.76, 106,698.08 and 45,489.72

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Solution

The fourth proportional to 77,318.76, 106,698.08 and 45,489.72 is: 62,774.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,318.76 : 106,698.08 = 45,489.72 : x
  2. Step 2: Convert to fraction form
    77,318.76/106,698.08 = 45,489.72/x
  3. Step 3: Cross multiply
    77,318.76x = 106,698.08 × 45,489.72
  4. Step 4: Simplify right side
    77,318.76x = 4,853,665,783.74
  5. Step 5: Solve for x
    x = 4,853,665,783.74/77,318.76
  6. Step 6: Final answer
    x = 62,774.75

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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.