Home / 55,955.45-77,220.20-30,463.48

Finding the Fourth Proportional to 55,955.45, 77,220.20 and 30,463.48

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Solution

The fourth proportional to 55,955.45, 77,220.20 and 30,463.48 is: 42,040.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,955.45 : 77,220.20 = 30,463.48 : x
  2. Step 2: Convert to fraction form
    55,955.45/77,220.20 = 30,463.48/x
  3. Step 3: Cross multiply
    55,955.45x = 77,220.20 × 30,463.48
  4. Step 4: Simplify right side
    55,955.45x = 2,352,396,018.30
  5. Step 5: Solve for x
    x = 2,352,396,018.30/55,955.45
  6. Step 6: Final answer
    x = 42,040.52

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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.