Home / 64,972.20-97,458.30-53,162.40

Finding the Fourth Proportional to 64,972.20, 97,458.30 and 53,162.40

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Solution

The fourth proportional to 64,972.20, 97,458.30 and 53,162.40 is: 79,743.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,972.20 : 97,458.30 = 53,162.40 : x
  2. Step 2: Convert to fraction form
    64,972.20/97,458.30 = 53,162.40/x
  3. Step 3: Cross multiply
    64,972.20x = 97,458.30 × 53,162.40
  4. Step 4: Simplify right side
    64,972.20x = 5,181,117,127.92
  5. Step 5: Solve for x
    x = 5,181,117,127.92/64,972.20
  6. Step 6: Final answer
    x = 79,743.60

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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.