Home / 65,795.20-98,707.32-30,715.72

Finding the Fourth Proportional to 65,795.20, 98,707.32 and 30,715.72

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Solution

The fourth proportional to 65,795.20, 98,707.32 and 30,715.72 is: 46,080.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,795.20 : 98,707.32 = 30,715.72 : x
  2. Step 2: Convert to fraction form
    65,795.20/98,707.32 = 30,715.72/x
  3. Step 3: Cross multiply
    65,795.20x = 98,707.32 × 30,715.72
  4. Step 4: Simplify right side
    65,795.20x = 3,031,866,403.07
  5. Step 5: Solve for x
    x = 3,031,866,403.07/65,795.20
  6. Step 6: Final answer
    x = 46,080.36

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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.