Home / 81,450.46-112,390.23-45,637.66

Finding the Fourth Proportional to 81,450.46, 112,390.23 and 45,637.66

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Solution

The fourth proportional to 81,450.46, 112,390.23 and 45,637.66 is: 62,973.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,450.46 : 112,390.23 = 45,637.66 : x
  2. Step 2: Convert to fraction form
    81,450.46/112,390.23 = 45,637.66/x
  3. Step 3: Cross multiply
    81,450.46x = 112,390.23 × 45,637.66
  4. Step 4: Simplify right side
    81,450.46x = 5,129,227,104.06
  5. Step 5: Solve for x
    x = 5,129,227,104.06/81,450.46
  6. Step 6: Final answer
    x = 62,973.58

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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.