Home / 77,945.18-116,888.90-28,011.82

Finding the Fourth Proportional to 77,945.18, 116,888.90 and 28,011.82

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Solution

The fourth proportional to 77,945.18, 116,888.90 and 28,011.82 is: 42,007.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,945.18 : 116,888.90 = 28,011.82 : x
  2. Step 2: Convert to fraction form
    77,945.18/116,888.90 = 28,011.82/x
  3. Step 3: Cross multiply
    77,945.18x = 116,888.90 × 28,011.82
  4. Step 4: Simplify right side
    77,945.18x = 3,274,270,826.80
  5. Step 5: Solve for x
    x = 3,274,270,826.80/77,945.18
  6. Step 6: Final answer
    x = 42,007.35

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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.