Home / 76,231.40-105,166.18-47,892.20

Finding the Fourth Proportional to 76,231.40, 105,166.18 and 47,892.20

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Solution

The fourth proportional to 76,231.40, 105,166.18 and 47,892.20 is: 66,070.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,231.40 : 105,166.18 = 47,892.20 : x
  2. Step 2: Convert to fraction form
    76,231.40/105,166.18 = 47,892.20/x
  3. Step 3: Cross multiply
    76,231.40x = 105,166.18 × 47,892.20
  4. Step 4: Simplify right side
    76,231.40x = 5,036,639,725.80
  5. Step 5: Solve for x
    x = 5,036,639,725.80/76,231.40
  6. Step 6: Final answer
    x = 66,070.41

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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.