Home / 307,359.09-461,038.64-82,720.04

Finding the Fourth Proportional to 307,359.09, 461,038.64 and 82,720.04

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Solution

The fourth proportional to 307,359.09, 461,038.64 and 82,720.04 is: 124,080.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,359.09 : 461,038.64 = 82,720.04 : x
  2. Step 2: Convert to fraction form
    307,359.09/461,038.64 = 82,720.04/x
  3. Step 3: Cross multiply
    307,359.09x = 461,038.64 × 82,720.04
  4. Step 4: Simplify right side
    307,359.09x = 38,137,132,023.55
  5. Step 5: Solve for x
    x = 38,137,132,023.55/307,359.09
  6. Step 6: Final answer
    x = 124,080.05

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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.