Home / 76,973.45-115,460.10-56,046.62

Finding the Fourth Proportional to 76,973.45, 115,460.10 and 56,046.62

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Solution

The fourth proportional to 76,973.45, 115,460.10 and 56,046.62 is: 84,069.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,973.45 : 115,460.10 = 56,046.62 : x
  2. Step 2: Convert to fraction form
    76,973.45/115,460.10 = 56,046.62/x
  3. Step 3: Cross multiply
    76,973.45x = 115,460.10 × 56,046.62
  4. Step 4: Simplify right side
    76,973.45x = 6,471,148,638.51
  5. Step 5: Solve for x
    x = 6,471,148,638.51/76,973.45
  6. Step 6: Final answer
    x = 84,069.88

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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.