Home / 85,056.68-127,603.47-25,890.81

Finding the Fourth Proportional to 85,056.68, 127,603.47 and 25,890.81

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Solution

The fourth proportional to 85,056.68, 127,603.47 and 25,890.81 is: 38,841.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,056.68 : 127,603.47 = 25,890.81 : x
  2. Step 2: Convert to fraction form
    85,056.68/127,603.47 = 25,890.81/x
  3. Step 3: Cross multiply
    85,056.68x = 127,603.47 × 25,890.81
  4. Step 4: Simplify right side
    85,056.68x = 3,303,757,197.11
  5. Step 5: Solve for x
    x = 3,303,757,197.11/85,056.68
  6. Step 6: Final answer
    x = 38,841.83

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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.