Home / 85,825.42-128,706.53-29,651.11

Finding the Fourth Proportional to 85,825.42, 128,706.53 and 29,651.11

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Solution

The fourth proportional to 85,825.42, 128,706.53 and 29,651.11 is: 44,465.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,825.42 : 128,706.53 = 29,651.11 : x
  2. Step 2: Convert to fraction form
    85,825.42/128,706.53 = 29,651.11/x
  3. Step 3: Cross multiply
    85,825.42x = 128,706.53 × 29,651.11
  4. Step 4: Simplify right side
    85,825.42x = 3,816,291,008.73
  5. Step 5: Solve for x
    x = 3,816,291,008.73/85,825.42
  6. Step 6: Final answer
    x = 44,465.74

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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.