Home / 77,211.76-106,554.21-45,382.36

Finding the Fourth Proportional to 77,211.76, 106,554.21 and 45,382.36

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Solution

The fourth proportional to 77,211.76, 106,554.21 and 45,382.36 is: 62,628.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,211.76 : 106,554.21 = 45,382.36 : x
  2. Step 2: Convert to fraction form
    77,211.76/106,554.21 = 45,382.36/x
  3. Step 3: Cross multiply
    77,211.76x = 106,554.21 × 45,382.36
  4. Step 4: Simplify right side
    77,211.76x = 4,835,681,517.74
  5. Step 5: Solve for x
    x = 4,835,681,517.74/77,211.76
  6. Step 6: Final answer
    x = 62,628.82

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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.