Home / 64,862.20-97,139.70-43,972.60

Finding the Fourth Proportional to 64,862.20, 97,139.70 and 43,972.60

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Solution

The fourth proportional to 64,862.20, 97,139.70 and 43,972.60 is: 65,854.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,862.20 : 97,139.70 = 43,972.60 : x
  2. Step 2: Convert to fraction form
    64,862.20/97,139.70 = 43,972.60/x
  3. Step 3: Cross multiply
    64,862.20x = 97,139.70 × 43,972.60
  4. Step 4: Simplify right side
    64,862.20x = 4,271,485,172.22
  5. Step 5: Solve for x
    x = 4,271,485,172.22/64,862.20
  6. Step 6: Final answer
    x = 65,854.77

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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.