Home / 85,562.16-128,296.26-26,381.40

Finding the Fourth Proportional to 85,562.16, 128,296.26 and 26,381.40

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Solution

The fourth proportional to 85,562.16, 128,296.26 and 26,381.40 is: 39,557.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,562.16 : 128,296.26 = 26,381.40 : x
  2. Step 2: Convert to fraction form
    85,562.16/128,296.26 = 26,381.40/x
  3. Step 3: Cross multiply
    85,562.16x = 128,296.26 × 26,381.40
  4. Step 4: Simplify right side
    85,562.16x = 3,384,634,953.56
  5. Step 5: Solve for x
    x = 3,384,634,953.56/85,562.16
  6. Step 6: Final answer
    x = 39,557.61

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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.