Home / 81,911.04-122,718.24-37,574.88

Finding the Fourth Proportional to 81,911.04, 122,718.24 and 37,574.88

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Solution

The fourth proportional to 81,911.04, 122,718.24 and 37,574.88 is: 56,294.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,911.04 : 122,718.24 = 37,574.88 : x
  2. Step 2: Convert to fraction form
    81,911.04/122,718.24 = 37,574.88/x
  3. Step 3: Cross multiply
    81,911.04x = 122,718.24 × 37,574.88
  4. Step 4: Simplify right side
    81,911.04x = 4,611,123,141.81
  5. Step 5: Solve for x
    x = 4,611,123,141.81/81,911.04
  6. Step 6: Final answer
    x = 56,294.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.