Home / 85,531.58-128,260.66-29,377.34

Finding the Fourth Proportional to 85,531.58, 128,260.66 and 29,377.34

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Solution

The fourth proportional to 85,531.58, 128,260.66 and 29,377.34 is: 44,053.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,531.58 : 128,260.66 = 29,377.34 : x
  2. Step 2: Convert to fraction form
    85,531.58/128,260.66 = 29,377.34/x
  3. Step 3: Cross multiply
    85,531.58x = 128,260.66 × 29,377.34
  4. Step 4: Simplify right side
    85,531.58x = 3,767,957,017.44
  5. Step 5: Solve for x
    x = 3,767,957,017.44/85,531.58
  6. Step 6: Final answer
    x = 44,053.40

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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.