Home / 51,870.81-71,583.12-29,210.61

Finding the Fourth Proportional to 51,870.81, 71,583.12 and 29,210.61

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Solution

The fourth proportional to 51,870.81, 71,583.12 and 29,210.61 is: 40,311.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,870.81 : 71,583.12 = 29,210.61 : x
  2. Step 2: Convert to fraction form
    51,870.81/71,583.12 = 29,210.61/x
  3. Step 3: Cross multiply
    51,870.81x = 71,583.12 × 29,210.61
  4. Step 4: Simplify right side
    51,870.81x = 2,090,986,600.90
  5. Step 5: Solve for x
    x = 2,090,986,600.90/51,870.81
  6. Step 6: Final answer
    x = 40,311.43

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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.