Home / 65,740.16-90,721.37-35,525.47

Finding the Fourth Proportional to 65,740.16, 90,721.37 and 35,525.47

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Solution

The fourth proportional to 65,740.16, 90,721.37 and 35,525.47 is: 49,025.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,740.16 : 90,721.37 = 35,525.47 : x
  2. Step 2: Convert to fraction form
    65,740.16/90,721.37 = 35,525.47/x
  3. Step 3: Cross multiply
    65,740.16x = 90,721.37 × 35,525.47
  4. Step 4: Simplify right side
    65,740.16x = 3,222,919,308.29
  5. Step 5: Solve for x
    x = 3,222,919,308.29/65,740.16
  6. Step 6: Final answer
    x = 49,025.12

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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.