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Finding the Fourth Proportional to 81,607.93, 112,620.99 and 45,800.80

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Solution

The fourth proportional to 81,607.93, 112,620.99 and 45,800.80 is: 63,206.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,607.93 : 112,620.99 = 45,800.80 : x
  2. Step 2: Convert to fraction form
    81,607.93/112,620.99 = 45,800.80/x
  3. Step 3: Cross multiply
    81,607.93x = 112,620.99 × 45,800.80
  4. Step 4: Simplify right side
    81,607.93x = 5,158,131,438.79
  5. Step 5: Solve for x
    x = 5,158,131,438.79/81,607.93
  6. Step 6: Final answer
    x = 63,206.25

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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.