Home / 57,184.23-78,912.09-31,689.93

Finding the Fourth Proportional to 57,184.23, 78,912.09 and 31,689.93

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Solution

The fourth proportional to 57,184.23, 78,912.09 and 31,689.93 is: 43,730.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,184.23 : 78,912.09 = 31,689.93 : x
  2. Step 2: Convert to fraction form
    57,184.23/78,912.09 = 31,689.93/x
  3. Step 3: Cross multiply
    57,184.23x = 78,912.09 × 31,689.93
  4. Step 4: Simplify right side
    57,184.23x = 2,500,718,608.25
  5. Step 5: Solve for x
    x = 2,500,718,608.25/57,184.23
  6. Step 6: Final answer
    x = 43,730.91

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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.