Home / 91,146.60-136,739.10-28,823.40

Finding the Fourth Proportional to 91,146.60, 136,739.10 and 28,823.40

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Solution

The fourth proportional to 91,146.60, 136,739.10 and 28,823.40 is: 43,241.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,146.60 : 136,739.10 = 28,823.40 : x
  2. Step 2: Convert to fraction form
    91,146.60/136,739.10 = 28,823.40/x
  3. Step 3: Cross multiply
    91,146.60x = 136,739.10 × 28,823.40
  4. Step 4: Simplify right side
    91,146.60x = 3,941,285,774.94
  5. Step 5: Solve for x
    x = 3,941,285,774.94/91,146.60
  6. Step 6: Final answer
    x = 43,241.17

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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.