Home / 84,482.11-126,597.07-77,013.37

Finding the Fourth Proportional to 84,482.11, 126,597.07 and 77,013.37

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Solution

The fourth proportional to 84,482.11, 126,597.07 and 77,013.37 is: 115,405.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,482.11 : 126,597.07 = 77,013.37 : x
  2. Step 2: Convert to fraction form
    84,482.11/126,597.07 = 77,013.37/x
  3. Step 3: Cross multiply
    84,482.11x = 126,597.07 × 77,013.37
  4. Step 4: Simplify right side
    84,482.11x = 9,749,666,992.83
  5. Step 5: Solve for x
    x = 9,749,666,992.83/84,482.11
  6. Step 6: Final answer
    x = 115,405.11

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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.