Home / 85,601.80-128,333.06-35,719.05

Finding the Fourth Proportional to 85,601.80, 128,333.06 and 35,719.05

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Solution

The fourth proportional to 85,601.80, 128,333.06 and 35,719.05 is: 53,549.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,601.80 : 128,333.06 = 35,719.05 : x
  2. Step 2: Convert to fraction form
    85,601.80/128,333.06 = 35,719.05/x
  3. Step 3: Cross multiply
    85,601.80x = 128,333.06 × 35,719.05
  4. Step 4: Simplify right side
    85,601.80x = 4,583,934,986.79
  5. Step 5: Solve for x
    x = 4,583,934,986.79/85,601.80
  6. Step 6: Final answer
    x = 53,549.52

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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.