Home / 85,226.40-127,853.10-29,071.80

Finding the Fourth Proportional to 85,226.40, 127,853.10 and 29,071.80

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Solution

The fourth proportional to 85,226.40, 127,853.10 and 29,071.80 is: 43,612.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,226.40 : 127,853.10 = 29,071.80 : x
  2. Step 2: Convert to fraction form
    85,226.40/127,853.10 = 29,071.80/x
  3. Step 3: Cross multiply
    85,226.40x = 127,853.10 × 29,071.80
  4. Step 4: Simplify right side
    85,226.40x = 3,716,919,752.58
  5. Step 5: Solve for x
    x = 3,716,919,752.58/85,226.40
  6. Step 6: Final answer
    x = 43,612.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.