Home / 51,451.68-70,951.14-31,288.92

Finding the Fourth Proportional to 51,451.68, 70,951.14 and 31,288.92

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Solution

The fourth proportional to 51,451.68, 70,951.14 and 31,288.92 is: 43,146.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,451.68 : 70,951.14 = 31,288.92 : x
  2. Step 2: Convert to fraction form
    51,451.68/70,951.14 = 31,288.92/x
  3. Step 3: Cross multiply
    51,451.68x = 70,951.14 × 31,288.92
  4. Step 4: Simplify right side
    51,451.68x = 2,219,984,543.37
  5. Step 5: Solve for x
    x = 2,219,984,543.37/51,451.68
  6. Step 6: Final answer
    x = 43,146.98

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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.