Home / 85,741.07-128,549.30-35,835.41

Finding the Fourth Proportional to 85,741.07, 128,549.30 and 35,835.41

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Solution

The fourth proportional to 85,741.07, 128,549.30 and 35,835.41 is: 53,727.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,741.07 : 128,549.30 = 35,835.41 : x
  2. Step 2: Convert to fraction form
    85,741.07/128,549.30 = 35,835.41/x
  3. Step 3: Cross multiply
    85,741.07x = 128,549.30 × 35,835.41
  4. Step 4: Simplify right side
    85,741.07x = 4,606,617,012.91
  5. Step 5: Solve for x
    x = 4,606,617,012.91/85,741.07
  6. Step 6: Final answer
    x = 53,727.08

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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.