Home / 76,020.31-104,908.26-42,486.31

Finding the Fourth Proportional to 76,020.31, 104,908.26 and 42,486.31

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Solution

The fourth proportional to 76,020.31, 104,908.26 and 42,486.31 is: 58,631.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,020.31 : 104,908.26 = 42,486.31 : x
  2. Step 2: Convert to fraction form
    76,020.31/104,908.26 = 42,486.31/x
  3. Step 3: Cross multiply
    76,020.31x = 104,908.26 × 42,486.31
  4. Step 4: Simplify right side
    76,020.31x = 4,457,164,855.92
  5. Step 5: Solve for x
    x = 4,457,164,855.92/76,020.31
  6. Step 6: Final answer
    x = 58,631.24

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1.5x scale

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.