Home / 86,488.36-129,637.76-33,839.98

Finding the Fourth Proportional to 86,488.36, 129,637.76 and 33,839.98

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Solution

The fourth proportional to 86,488.36, 129,637.76 and 33,839.98 is: 50,722.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,488.36 : 129,637.76 = 33,839.98 : x
  2. Step 2: Convert to fraction form
    86,488.36/129,637.76 = 33,839.98/x
  3. Step 3: Cross multiply
    86,488.36x = 129,637.76 × 33,839.98
  4. Step 4: Simplify right side
    86,488.36x = 4,386,939,205.64
  5. Step 5: Solve for x
    x = 4,386,939,205.64/86,488.36
  6. Step 6: Final answer
    x = 50,722.89

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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.