Home / 47,487.86-65,505.88-30,228.31

Finding the Fourth Proportional to 47,487.86, 65,505.88 and 30,228.31

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Solution

The fourth proportional to 47,487.86, 65,505.88 and 30,228.31 is: 41,697.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,487.86 : 65,505.88 = 30,228.31 : x
  2. Step 2: Convert to fraction form
    47,487.86/65,505.88 = 30,228.31/x
  3. Step 3: Cross multiply
    47,487.86x = 65,505.88 × 30,228.31
  4. Step 4: Simplify right side
    47,487.86x = 1,980,132,047.46
  5. Step 5: Solve for x
    x = 1,980,132,047.46/47,487.86
  6. Step 6: Final answer
    x = 41,697.65

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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.