Home / 77,583.42-107,055-45,740.70

Finding the Fourth Proportional to 77,583.42, 107,055 and 45,740.70

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Solution

The fourth proportional to 77,583.42, 107,055 and 45,740.70 is: 63,116.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,583.42 : 107,055 = 45,740.70 : x
  2. Step 2: Convert to fraction form
    77,583.42/107,055 = 45,740.70/x
  3. Step 3: Cross multiply
    77,583.42x = 107,055 × 45,740.70
  4. Step 4: Simplify right side
    77,583.42x = 4,896,770,638.50
  5. Step 5: Solve for x
    x = 4,896,770,638.50/77,583.42
  6. Step 6: Final answer
    x = 63,116.20

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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.