Home / 51,261.69-76,894.86-15,720.41

Finding the Fourth Proportional to 51,261.69, 76,894.86 and 15,720.41

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Solution

The fourth proportional to 51,261.69, 76,894.86 and 15,720.41 is: 23,581.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,261.69 : 76,894.86 = 15,720.41 : x
  2. Step 2: Convert to fraction form
    51,261.69/76,894.86 = 15,720.41/x
  3. Step 3: Cross multiply
    51,261.69x = 76,894.86 × 15,720.41
  4. Step 4: Simplify right side
    51,261.69x = 1,208,818,341.62
  5. Step 5: Solve for x
    x = 1,208,818,341.62/51,261.69
  6. Step 6: Final answer
    x = 23,581.32

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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.