Home / 81,348.50-112,255.44-45,047.34

Finding the Fourth Proportional to 81,348.50, 112,255.44 and 45,047.34

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Solution

The fourth proportional to 81,348.50, 112,255.44 and 45,047.34 is: 62,162.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,348.50 : 112,255.44 = 45,047.34 : x
  2. Step 2: Convert to fraction form
    81,348.50/112,255.44 = 45,047.34/x
  3. Step 3: Cross multiply
    81,348.50x = 112,255.44 × 45,047.34
  4. Step 4: Simplify right side
    81,348.50x = 5,056,808,972.53
  5. Step 5: Solve for x
    x = 5,056,808,972.53/81,348.50
  6. Step 6: Final answer
    x = 62,162.29

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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.