Home / 76,896.19-106,116.81-45,065.12

Finding the Fourth Proportional to 76,896.19, 106,116.81 and 45,065.12

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Solution

The fourth proportional to 76,896.19, 106,116.81 and 45,065.12 is: 62,189.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,896.19 : 106,116.81 = 45,065.12 : x
  2. Step 2: Convert to fraction form
    76,896.19/106,116.81 = 45,065.12/x
  3. Step 3: Cross multiply
    76,896.19x = 106,116.81 × 45,065.12
  4. Step 4: Simplify right side
    76,896.19x = 4,782,166,776.67
  5. Step 5: Solve for x
    x = 4,782,166,776.67/76,896.19
  6. Step 6: Final answer
    x = 62,189.91

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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.