Home / 81,427.56-112,376.61-45,625.56

Finding the Fourth Proportional to 81,427.56, 112,376.61 and 45,625.56

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Solution

The fourth proportional to 81,427.56, 112,376.61 and 45,625.56 is: 62,966.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,427.56 : 112,376.61 = 45,625.56 : x
  2. Step 2: Convert to fraction form
    81,427.56/112,376.61 = 45,625.56/x
  3. Step 3: Cross multiply
    81,427.56x = 112,376.61 × 45,625.56
  4. Step 4: Simplify right side
    81,427.56x = 5,127,245,762.15
  5. Step 5: Solve for x
    x = 5,127,245,762.15/81,427.56
  6. Step 6: Final answer
    x = 62,966.96

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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.