Home / 72,341.13-108,380.47-53,412.64

Finding the Fourth Proportional to 72,341.13, 108,380.47 and 53,412.64

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Solution

The fourth proportional to 72,341.13, 108,380.47 and 53,412.64 is: 80,022.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,341.13 : 108,380.47 = 53,412.64 : x
  2. Step 2: Convert to fraction form
    72,341.13/108,380.47 = 53,412.64/x
  3. Step 3: Cross multiply
    72,341.13x = 108,380.47 × 53,412.64
  4. Step 4: Simplify right side
    72,341.13x = 5,788,887,027.14
  5. Step 5: Solve for x
    x = 5,788,887,027.14/72,341.13
  6. Step 6: Final answer
    x = 80,022.07

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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.