Home / 85,714.36-118,291.26-47,990.68

Finding the Fourth Proportional to 85,714.36, 118,291.26 and 47,990.68

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Solution

The fourth proportional to 85,714.36, 118,291.26 and 47,990.68 is: 66,230.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,714.36 : 118,291.26 = 47,990.68 : x
  2. Step 2: Convert to fraction form
    85,714.36/118,291.26 = 47,990.68/x
  3. Step 3: Cross multiply
    85,714.36x = 118,291.26 × 47,990.68
  4. Step 4: Simplify right side
    85,714.36x = 5,676,878,005.46
  5. Step 5: Solve for x
    x = 5,676,878,005.46/85,714.36
  6. Step 6: Final answer
    x = 66,230.19

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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.