Home / 77,022.36-106,289.64-43,031.52

Finding the Fourth Proportional to 77,022.36, 106,289.64 and 43,031.52

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Solution

The fourth proportional to 77,022.36, 106,289.64 and 43,031.52 is: 59,382.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,022.36 : 106,289.64 = 43,031.52 : x
  2. Step 2: Convert to fraction form
    77,022.36/106,289.64 = 43,031.52/x
  3. Step 3: Cross multiply
    77,022.36x = 106,289.64 × 43,031.52
  4. Step 4: Simplify right side
    77,022.36x = 4,573,804,769.45
  5. Step 5: Solve for x
    x = 4,573,804,769.45/77,022.36
  6. Step 6: Final answer
    x = 59,382.82

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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.