Home / 86,387.42-119,208.57-47,623.52

Finding the Fourth Proportional to 86,387.42, 119,208.57 and 47,623.52

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Solution

The fourth proportional to 86,387.42, 119,208.57 and 47,623.52 is: 65,717.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,387.42 : 119,208.57 = 47,623.52 : x
  2. Step 2: Convert to fraction form
    86,387.42/119,208.57 = 47,623.52/x
  3. Step 3: Cross multiply
    86,387.42x = 119,208.57 × 47,623.52
  4. Step 4: Simplify right side
    86,387.42x = 5,677,131,717.57
  5. Step 5: Solve for x
    x = 5,677,131,717.57/86,387.42
  6. Step 6: Final answer
    x = 65,717.11

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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.