Home / 81,267.58-112,143.16-45,450.66

Finding the Fourth Proportional to 81,267.58, 112,143.16 and 45,450.66

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Solution

The fourth proportional to 81,267.58, 112,143.16 and 45,450.66 is: 62,718.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,267.58 : 112,143.16 = 45,450.66 : x
  2. Step 2: Convert to fraction form
    81,267.58/112,143.16 = 45,450.66/x
  3. Step 3: Cross multiply
    81,267.58x = 112,143.16 × 45,450.66
  4. Step 4: Simplify right side
    81,267.58x = 5,096,980,636.49
  5. Step 5: Solve for x
    x = 5,096,980,636.49/81,267.58
  6. Step 6: Final answer
    x = 62,718.50

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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.