Home / 99,040.43-136,677.65-60,780.82

Finding the Fourth Proportional to 99,040.43, 136,677.65 and 60,780.82

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Solution

The fourth proportional to 99,040.43, 136,677.65 and 60,780.82 is: 83,878.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,040.43 : 136,677.65 = 60,780.82 : x
  2. Step 2: Convert to fraction form
    99,040.43/136,677.65 = 60,780.82/x
  3. Step 3: Cross multiply
    99,040.43x = 136,677.65 × 60,780.82
  4. Step 4: Simplify right side
    99,040.43x = 8,307,378,997.07
  5. Step 5: Solve for x
    x = 8,307,378,997.07/99,040.43
  6. Step 6: Final answer
    x = 83,878.67

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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.