Home / 91,090.95-136,603.62-38,504.52

Finding the Fourth Proportional to 91,090.95, 136,603.62 and 38,504.52

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Solution

The fourth proportional to 91,090.95, 136,603.62 and 38,504.52 is: 57,742.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,090.95 : 136,603.62 = 38,504.52 : x
  2. Step 2: Convert to fraction form
    91,090.95/136,603.62 = 38,504.52/x
  3. Step 3: Cross multiply
    91,090.95x = 136,603.62 × 38,504.52
  4. Step 4: Simplify right side
    91,090.95x = 5,259,856,818.36
  5. Step 5: Solve for x
    x = 5,259,856,818.36/91,090.95
  6. Step 6: Final answer
    x = 57,742.91

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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.