Home / 77,345.34-106,740.78-43,364.73

Finding the Fourth Proportional to 77,345.34, 106,740.78 and 43,364.73

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Solution

The fourth proportional to 77,345.34, 106,740.78 and 43,364.73 is: 59,845.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,345.34 : 106,740.78 = 43,364.73 : x
  2. Step 2: Convert to fraction form
    77,345.34/106,740.78 = 43,364.73/x
  3. Step 3: Cross multiply
    77,345.34x = 106,740.78 × 43,364.73
  4. Step 4: Simplify right side
    77,345.34x = 4,628,785,104.69
  5. Step 5: Solve for x
    x = 4,628,785,104.69/77,345.34
  6. Step 6: Final answer
    x = 59,845.69

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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.