Home / 81,503.34-112,474.53-45,693.36

Finding the Fourth Proportional to 81,503.34, 112,474.53 and 45,693.36

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Solution

The fourth proportional to 81,503.34, 112,474.53 and 45,693.36 is: 63,056.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,503.34 : 112,474.53 = 45,693.36 : x
  2. Step 2: Convert to fraction form
    81,503.34/112,474.53 = 45,693.36/x
  3. Step 3: Cross multiply
    81,503.34x = 112,474.53 × 45,693.36
  4. Step 4: Simplify right side
    81,503.34x = 5,139,339,190.12
  5. Step 5: Solve for x
    x = 5,139,339,190.12/81,503.34
  6. Step 6: Final answer
    x = 63,056.79

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1.5x scale

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.