Home / 65,945.65-91,000.68-42,069.75

Finding the Fourth Proportional to 65,945.65, 91,000.68 and 42,069.75

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Solution

The fourth proportional to 65,945.65, 91,000.68 and 42,069.75 is: 58,053.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,945.65 : 91,000.68 = 42,069.75 : x
  2. Step 2: Convert to fraction form
    65,945.65/91,000.68 = 42,069.75/x
  3. Step 3: Cross multiply
    65,945.65x = 91,000.68 × 42,069.75
  4. Step 4: Simplify right side
    65,945.65x = 3,828,375,699.67
  5. Step 5: Solve for x
    x = 3,828,375,699.67/65,945.65
  6. Step 6: Final answer
    x = 58,053.50

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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.