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Finding the Fourth Proportional to 81,502.81, 112,473.80 and 45,692.83

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Solution

The fourth proportional to 81,502.81, 112,473.80 and 45,692.83 is: 63,056.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,502.81 : 112,473.80 = 45,692.83 : x
  2. Step 2: Convert to fraction form
    81,502.81/112,473.80 = 45,692.83/x
  3. Step 3: Cross multiply
    81,502.81x = 112,473.80 × 45,692.83
  4. Step 4: Simplify right side
    81,502.81x = 5,139,246,222.85
  5. Step 5: Solve for x
    x = 5,139,246,222.85/81,502.81
  6. Step 6: Final answer
    x = 63,056.06

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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.