Home / 56,160.69-77,438.57-45,919.77

Finding the Fourth Proportional to 56,160.69, 77,438.57 and 45,919.77

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Solution

The fourth proportional to 56,160.69, 77,438.57 and 45,919.77 is: 63,317.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,160.69 : 77,438.57 = 45,919.77 : x
  2. Step 2: Convert to fraction form
    56,160.69/77,438.57 = 45,919.77/x
  3. Step 3: Cross multiply
    56,160.69x = 77,438.57 × 45,919.77
  4. Step 4: Simplify right side
    56,160.69x = 3,555,961,015.13
  5. Step 5: Solve for x
    x = 3,555,961,015.13/56,160.69
  6. Step 6: Final answer
    x = 63,317.62

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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.