Home / 84,661.04-126,998.48-42,519.45

Finding the Fourth Proportional to 84,661.04, 126,998.48 and 42,519.45

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Solution

The fourth proportional to 84,661.04, 126,998.48 and 42,519.45 is: 63,782.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,661.04 : 126,998.48 = 42,519.45 : x
  2. Step 2: Convert to fraction form
    84,661.04/126,998.48 = 42,519.45/x
  3. Step 3: Cross multiply
    84,661.04x = 126,998.48 × 42,519.45
  4. Step 4: Simplify right side
    84,661.04x = 5,399,905,307.84
  5. Step 5: Solve for x
    x = 5,399,905,307.84/84,661.04
  6. Step 6: Final answer
    x = 63,782.65

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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.