Home / 85,434.08-128,197.08-35,548.61

Finding the Fourth Proportional to 85,434.08, 128,197.08 and 35,548.61

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Solution

The fourth proportional to 85,434.08, 128,197.08 and 35,548.61 is: 53,342.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,434.08 : 128,197.08 = 35,548.61 : x
  2. Step 2: Convert to fraction form
    85,434.08/128,197.08 = 35,548.61/x
  3. Step 3: Cross multiply
    85,434.08x = 128,197.08 × 35,548.61
  4. Step 4: Simplify right side
    85,434.08x = 4,557,227,359.07
  5. Step 5: Solve for x
    x = 4,557,227,359.07/85,434.08
  6. Step 6: Final answer
    x = 53,342.03

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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.