Home / 81,195.03-112,048.83-45,385.02

Finding the Fourth Proportional to 81,195.03, 112,048.83 and 45,385.02

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Solution

The fourth proportional to 81,195.03, 112,048.83 and 45,385.02 is: 62,631.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,195.03 : 112,048.83 = 45,385.02 : x
  2. Step 2: Convert to fraction form
    81,195.03/112,048.83 = 45,385.02/x
  3. Step 3: Cross multiply
    81,195.03x = 112,048.83 × 45,385.02
  4. Step 4: Simplify right side
    81,195.03x = 5,085,338,390.53
  5. Step 5: Solve for x
    x = 5,085,338,390.53/81,195.03
  6. Step 6: Final answer
    x = 62,631.15

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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.