Home / 65,716.30-90,688.39-37,421.99

Finding the Fourth Proportional to 65,716.30, 90,688.39 and 37,421.99

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Solution

The fourth proportional to 65,716.30, 90,688.39 and 37,421.99 is: 51,642.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,716.30 : 90,688.39 = 37,421.99 : x
  2. Step 2: Convert to fraction form
    65,716.30/90,688.39 = 37,421.99/x
  3. Step 3: Cross multiply
    65,716.30x = 90,688.39 × 37,421.99
  4. Step 4: Simplify right side
    65,716.30x = 3,393,740,023.70
  5. Step 5: Solve for x
    x = 3,393,740,023.70/65,716.30
  6. Step 6: Final answer
    x = 51,642.29

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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.