Home / 86,764.11-129,911.38-56,703.46

Finding the Fourth Proportional to 86,764.11, 129,911.38 and 56,703.46

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Solution

The fourth proportional to 86,764.11, 129,911.38 and 56,703.46 is: 84,901.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,764.11 : 129,911.38 = 56,703.46 : x
  2. Step 2: Convert to fraction form
    86,764.11/129,911.38 = 56,703.46/x
  3. Step 3: Cross multiply
    86,764.11x = 129,911.38 × 56,703.46
  4. Step 4: Simplify right side
    86,764.11x = 7,366,424,739.37
  5. Step 5: Solve for x
    x = 7,366,424,739.37/86,764.11
  6. Step 6: Final answer
    x = 84,901.75

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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.