Home / 86,029.10-118,721.68-47,792.12

Finding the Fourth Proportional to 86,029.10, 118,721.68 and 47,792.12

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Solution

The fourth proportional to 86,029.10, 118,721.68 and 47,792.12 is: 65,953.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,029.10 : 118,721.68 = 47,792.12 : x
  2. Step 2: Convert to fraction form
    86,029.10/118,721.68 = 47,792.12/x
  3. Step 3: Cross multiply
    86,029.10x = 118,721.68 × 47,792.12
  4. Step 4: Simplify right side
    86,029.10x = 5,673,960,777.16
  5. Step 5: Solve for x
    x = 5,673,960,777.16/86,029.10
  6. Step 6: Final answer
    x = 65,953.97

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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.