Home / 76,484.19-105,518.70-56,388.84

Finding the Fourth Proportional to 76,484.19, 105,518.70 and 56,388.84

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Solution

The fourth proportional to 76,484.19, 105,518.70 and 56,388.84 is: 77,794.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,484.19 : 105,518.70 = 56,388.84 : x
  2. Step 2: Convert to fraction form
    76,484.19/105,518.70 = 56,388.84/x
  3. Step 3: Cross multiply
    76,484.19x = 105,518.70 × 56,388.84
  4. Step 4: Simplify right side
    76,484.19x = 5,950,077,091.31
  5. Step 5: Solve for x
    x = 5,950,077,091.31/76,484.19
  6. Step 6: Final answer
    x = 77,794.86

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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.