Home / 81,313.67-112,212.86-45,510.59

Finding the Fourth Proportional to 81,313.67, 112,212.86 and 45,510.59

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Solution

The fourth proportional to 81,313.67, 112,212.86 and 45,510.59 is: 62,804.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,313.67 : 112,212.86 = 45,510.59 : x
  2. Step 2: Convert to fraction form
    81,313.67/112,212.86 = 45,510.59/x
  3. Step 3: Cross multiply
    81,313.67x = 112,212.86 × 45,510.59
  4. Step 4: Simplify right side
    81,313.67x = 5,106,873,773.16
  5. Step 5: Solve for x
    x = 5,106,873,773.16/81,313.67
  6. Step 6: Final answer
    x = 62,804.61

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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.