Home / 99,112.94-136,775.80-56,091.65

Finding the Fourth Proportional to 99,112.94, 136,775.80 and 56,091.65

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Solution

The fourth proportional to 99,112.94, 136,775.80 and 56,091.65 is: 77,406.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,112.94 : 136,775.80 = 56,091.65 : x
  2. Step 2: Convert to fraction form
    99,112.94/136,775.80 = 56,091.65/x
  3. Step 3: Cross multiply
    99,112.94x = 136,775.80 × 56,091.65
  4. Step 4: Simplify right side
    99,112.94x = 7,671,980,030.25
  5. Step 5: Solve for x
    x = 7,671,980,030.25/99,112.94
  6. Step 6: Final answer
    x = 77,406.44

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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.