Home / 77,030.60-115,578.30-41,995.40

Finding the Fourth Proportional to 77,030.60, 115,578.30 and 41,995.40

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Solution

The fourth proportional to 77,030.60, 115,578.30 and 41,995.40 is: 63,010.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,030.60 : 115,578.30 = 41,995.40 : x
  2. Step 2: Convert to fraction form
    77,030.60/115,578.30 = 41,995.40/x
  3. Step 3: Cross multiply
    77,030.60x = 115,578.30 × 41,995.40
  4. Step 4: Simplify right side
    77,030.60x = 4,853,756,939.82
  5. Step 5: Solve for x
    x = 4,853,756,939.82/77,030.60
  6. Step 6: Final answer
    x = 63,010.76

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.