Home / 85,141.12-117,400.80-58,288

Finding the Fourth Proportional to 85,141.12, 117,400.80 and 58,288

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Solution

The fourth proportional to 85,141.12, 117,400.80 and 58,288 is: 80,373.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,141.12 : 117,400.80 = 58,288 : x
  2. Step 2: Convert to fraction form
    85,141.12/117,400.80 = 58,288/x
  3. Step 3: Cross multiply
    85,141.12x = 117,400.80 × 58,288
  4. Step 4: Simplify right side
    85,141.12x = 6,843,057,830.40
  5. Step 5: Solve for x
    x = 6,843,057,830.40/85,141.12
  6. Step 6: Final answer
    x = 80,373.12

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.