Home / 72,150.35-99,610.56-45,315.86

Finding the Fourth Proportional to 72,150.35, 99,610.56 and 45,315.86

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Solution

The fourth proportional to 72,150.35, 99,610.56 and 45,315.86 is: 62,562.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,150.35 : 99,610.56 = 45,315.86 : x
  2. Step 2: Convert to fraction form
    72,150.35/99,610.56 = 45,315.86/x
  3. Step 3: Cross multiply
    72,150.35x = 99,610.56 × 45,315.86
  4. Step 4: Simplify right side
    72,150.35x = 4,513,937,693.43
  5. Step 5: Solve for x
    x = 4,513,937,693.43/72,150.35
  6. Step 6: Final answer
    x = 62,562.94

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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.