Home / 86,065.21-118,767.61-47,823.77

Finding the Fourth Proportional to 86,065.21, 118,767.61 and 47,823.77

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Solution

The fourth proportional to 86,065.21, 118,767.61 and 47,823.77 is: 65,995.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,065.21 : 118,767.61 = 47,823.77 : x
  2. Step 2: Convert to fraction form
    86,065.21/118,767.61 = 47,823.77/x
  3. Step 3: Cross multiply
    86,065.21x = 118,767.61 × 47,823.77
  4. Step 4: Simplify right side
    86,065.21x = 5,679,914,864.09
  5. Step 5: Solve for x
    x = 5,679,914,864.09/86,065.21
  6. Step 6: Final answer
    x = 65,995.48

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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.