Home / 81,247.68-112,127.52-45,441.03

Finding the Fourth Proportional to 81,247.68, 112,127.52 and 45,441.03

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Solution

The fourth proportional to 81,247.68, 112,127.52 and 45,441.03 is: 62,711.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,247.68 : 112,127.52 = 45,441.03 : x
  2. Step 2: Convert to fraction form
    81,247.68/112,127.52 = 45,441.03/x
  3. Step 3: Cross multiply
    81,247.68x = 112,127.52 × 45,441.03
  4. Step 4: Simplify right side
    81,247.68x = 5,095,190,000.15
  5. Step 5: Solve for x
    x = 5,095,190,000.15/81,247.68
  6. Step 6: Final answer
    x = 62,711.82

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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.