Home / 76,650.14-105,747.66-56,555.26

Finding the Fourth Proportional to 76,650.14, 105,747.66 and 56,555.26

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Solution

The fourth proportional to 76,650.14, 105,747.66 and 56,555.26 is: 78,024.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,650.14 : 105,747.66 = 56,555.26 : x
  2. Step 2: Convert to fraction form
    76,650.14/105,747.66 = 56,555.26/x
  3. Step 3: Cross multiply
    76,650.14x = 105,747.66 × 56,555.26
  4. Step 4: Simplify right side
    76,650.14x = 5,980,586,141.32
  5. Step 5: Solve for x
    x = 5,980,586,141.32/76,650.14
  6. Step 6: Final answer
    x = 78,024.46

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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.