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Finding the Fourth Proportional to 81,713.99, 112,768.22 and 45,903.22

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Solution

The fourth proportional to 81,713.99, 112,768.22 and 45,903.22 is: 63,348.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,713.99 : 112,768.22 = 45,903.22 : x
  2. Step 2: Convert to fraction form
    81,713.99/112,768.22 = 45,903.22/x
  3. Step 3: Cross multiply
    81,713.99x = 112,768.22 × 45,903.22
  4. Step 4: Simplify right side
    81,713.99x = 5,176,424,411.67
  5. Step 5: Solve for x
    x = 5,176,424,411.67/81,713.99
  6. Step 6: Final answer
    x = 63,348.08

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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.