Home / 81,487.75-112,459.58-47,960.23

Finding the Fourth Proportional to 81,487.75, 112,459.58 and 47,960.23

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Solution

The fourth proportional to 81,487.75, 112,459.58 and 47,960.23 is: 66,188.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,487.75 : 112,459.58 = 47,960.23 : x
  2. Step 2: Convert to fraction form
    81,487.75/112,459.58 = 47,960.23/x
  3. Step 3: Cross multiply
    81,487.75x = 112,459.58 × 47,960.23
  4. Step 4: Simplify right side
    81,487.75x = 5,393,587,322.50
  5. Step 5: Solve for x
    x = 5,393,587,322.50/81,487.75
  6. Step 6: Final answer
    x = 66,188.93

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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.