Home / 81,491.19-112,455.70-45,683.52

Finding the Fourth Proportional to 81,491.19, 112,455.70 and 45,683.52

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Solution

The fourth proportional to 81,491.19, 112,455.70 and 45,683.52 is: 63,042.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,491.19 : 112,455.70 = 45,683.52 : x
  2. Step 2: Convert to fraction form
    81,491.19/112,455.70 = 45,683.52/x
  3. Step 3: Cross multiply
    81,491.19x = 112,455.70 × 45,683.52
  4. Step 4: Simplify right side
    81,491.19x = 5,137,372,220.06
  5. Step 5: Solve for x
    x = 5,137,372,220.06/81,491.19
  6. Step 6: Final answer
    x = 63,042.06

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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.