Home / 76,795.13-105,977.77-42,805.77

Finding the Fourth Proportional to 76,795.13, 105,977.77 and 42,805.77

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Solution

The fourth proportional to 76,795.13, 105,977.77 and 42,805.77 is: 59,072.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,795.13 : 105,977.77 = 42,805.77 : x
  2. Step 2: Convert to fraction form
    76,795.13/105,977.77 = 42,805.77/x
  3. Step 3: Cross multiply
    76,795.13x = 105,977.77 × 42,805.77
  4. Step 4: Simplify right side
    76,795.13x = 4,536,460,047.73
  5. Step 5: Solve for x
    x = 4,536,460,047.73/76,795.13
  6. Step 6: Final answer
    x = 59,072.24

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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.