Home / 85,823.04-128,702.96-29,648.73

Finding the Fourth Proportional to 85,823.04, 128,702.96 and 29,648.73

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Solution

The fourth proportional to 85,823.04, 128,702.96 and 29,648.73 is: 44,462.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,823.04 : 128,702.96 = 29,648.73 : x
  2. Step 2: Convert to fraction form
    85,823.04/128,702.96 = 29,648.73/x
  3. Step 3: Cross multiply
    85,823.04x = 128,702.96 × 29,648.73
  4. Step 4: Simplify right side
    85,823.04x = 3,815,879,311.24
  5. Step 5: Solve for x
    x = 3,815,879,311.24/85,823.04
  6. Step 6: Final answer
    x = 44,462.18

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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.