Home / 85,694.42-128,374.23-59,035.70

Finding the Fourth Proportional to 85,694.42, 128,374.23 and 59,035.70

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Solution

The fourth proportional to 85,694.42, 128,374.23 and 59,035.70 is: 88,438.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,694.42 : 128,374.23 = 59,035.70 : x
  2. Step 2: Convert to fraction form
    85,694.42/128,374.23 = 59,035.70/x
  3. Step 3: Cross multiply
    85,694.42x = 128,374.23 × 59,035.70
  4. Step 4: Simplify right side
    85,694.42x = 7,578,662,530.01
  5. Step 5: Solve for x
    x = 7,578,662,530.01/85,694.42
  6. Step 6: Final answer
    x = 88,438.23

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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.