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Finding the Fourth Proportional to 86,033.52, 118,714.14 and 47,790.18

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Solution

The fourth proportional to 86,033.52, 118,714.14 and 47,790.18 is: 65,943.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,033.52 : 118,714.14 = 47,790.18 : x
  2. Step 2: Convert to fraction form
    86,033.52/118,714.14 = 47,790.18/x
  3. Step 3: Cross multiply
    86,033.52x = 118,714.14 × 47,790.18
  4. Step 4: Simplify right side
    86,033.52x = 5,673,370,119.15
  5. Step 5: Solve for x
    x = 5,673,370,119.15/86,033.52
  6. Step 6: Final answer
    x = 65,943.72

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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.