Home / 76,616.31-105,663.21-53,634.36

Finding the Fourth Proportional to 76,616.31, 105,663.21 and 53,634.36

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Solution

The fourth proportional to 76,616.31, 105,663.21 and 53,634.36 is: 73,968.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,616.31 : 105,663.21 = 53,634.36 : x
  2. Step 2: Convert to fraction form
    76,616.31/105,663.21 = 53,634.36/x
  3. Step 3: Cross multiply
    76,616.31x = 105,663.21 × 53,634.36
  4. Step 4: Simplify right side
    76,616.31x = 5,667,178,643.90
  5. Step 5: Solve for x
    x = 5,667,178,643.90/76,616.31
  6. Step 6: Final answer
    x = 73,968.31

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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.