Home / 56,372.35-77,792.99-30,878.51

Finding the Fourth Proportional to 56,372.35, 77,792.99 and 30,878.51

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Solution

The fourth proportional to 56,372.35, 77,792.99 and 30,878.51 is: 42,611.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,372.35 : 77,792.99 = 30,878.51 : x
  2. Step 2: Convert to fraction form
    56,372.35/77,792.99 = 30,878.51/x
  3. Step 3: Cross multiply
    56,372.35x = 77,792.99 × 30,878.51
  4. Step 4: Simplify right side
    56,372.35x = 2,402,131,619.64
  5. Step 5: Solve for x
    x = 2,402,131,619.64/56,372.35
  6. Step 6: Final answer
    x = 42,611.88

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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.