Home / 77,016.05-106,271.66-43,020.21

Finding the Fourth Proportional to 77,016.05, 106,271.66 and 43,020.21

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Solution

The fourth proportional to 77,016.05, 106,271.66 and 43,020.21 is: 59,362.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,016.05 : 106,271.66 = 43,020.21 : x
  2. Step 2: Convert to fraction form
    77,016.05/106,271.66 = 43,020.21/x
  3. Step 3: Cross multiply
    77,016.05x = 106,271.66 × 43,020.21
  4. Step 4: Simplify right side
    77,016.05x = 4,571,828,915.15
  5. Step 5: Solve for x
    x = 4,571,828,915.15/77,016.05
  6. Step 6: Final answer
    x = 59,362.03

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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.