Home / 83,440.80-115,146.36-45,714.24

Finding the Fourth Proportional to 83,440.80, 115,146.36 and 45,714.24

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Solution

The fourth proportional to 83,440.80, 115,146.36 and 45,714.24 is: 63,084.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,440.80 : 115,146.36 = 45,714.24 : x
  2. Step 2: Convert to fraction form
    83,440.80/115,146.36 = 45,714.24/x
  3. Step 3: Cross multiply
    83,440.80x = 115,146.36 × 45,714.24
  4. Step 4: Simplify right side
    83,440.80x = 5,263,828,336.17
  5. Step 5: Solve for x
    x = 5,263,828,336.17/83,440.80
  6. Step 6: Final answer
    x = 63,084.59

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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.