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Finding the Fourth Proportional to 77,513.69, 106,970.02 and 43,529.54

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Solution

The fourth proportional to 77,513.69, 106,970.02 and 43,529.54 is: 60,071.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,513.69 : 106,970.02 = 43,529.54 : x
  2. Step 2: Convert to fraction form
    77,513.69/106,970.02 = 43,529.54/x
  3. Step 3: Cross multiply
    77,513.69x = 106,970.02 × 43,529.54
  4. Step 4: Simplify right side
    77,513.69x = 4,656,355,120.72
  5. Step 5: Solve for x
    x = 4,656,355,120.72/77,513.69
  6. Step 6: Final answer
    x = 60,071.39

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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.