Home / 86,379.36-119,212.20-52,386.72

Finding the Fourth Proportional to 86,379.36, 119,212.20 and 52,386.72

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Solution

The fourth proportional to 86,379.36, 119,212.20 and 52,386.72 is: 72,298.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,379.36 : 119,212.20 = 52,386.72 : x
  2. Step 2: Convert to fraction form
    86,379.36/119,212.20 = 52,386.72/x
  3. Step 3: Cross multiply
    86,379.36x = 119,212.20 × 52,386.72
  4. Step 4: Simplify right side
    86,379.36x = 6,245,136,141.98
  5. Step 5: Solve for x
    x = 6,245,136,141.98/86,379.36
  6. Step 6: Final answer
    x = 72,298.94

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1.5x scale

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.