Home / 72,316.39-99,784.73-45,439.86

Finding the Fourth Proportional to 72,316.39, 99,784.73 and 45,439.86

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Solution

The fourth proportional to 72,316.39, 99,784.73 and 45,439.86 is: 62,699.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,316.39 : 99,784.73 = 45,439.86 : x
  2. Step 2: Convert to fraction form
    72,316.39/99,784.73 = 45,439.86/x
  3. Step 3: Cross multiply
    72,316.39x = 99,784.73 × 45,439.86
  4. Step 4: Simplify right side
    72,316.39x = 4,534,204,274.94
  5. Step 5: Solve for x
    x = 4,534,204,274.94/72,316.39
  6. Step 6: Final answer
    x = 62,699.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.