Home / 57,050.46-78,728.13-31,557.87

Finding the Fourth Proportional to 57,050.46, 78,728.13 and 31,557.87

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Solution

The fourth proportional to 57,050.46, 78,728.13 and 31,557.87 is: 43,549.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,050.46 : 78,728.13 = 31,557.87 : x
  2. Step 2: Convert to fraction form
    57,050.46/78,728.13 = 31,557.87/x
  3. Step 3: Cross multiply
    57,050.46x = 78,728.13 × 31,557.87
  4. Step 4: Simplify right side
    57,050.46x = 2,484,492,091.88
  5. Step 5: Solve for x
    x = 2,484,492,091.88/57,050.46
  6. Step 6: Final answer
    x = 43,549.03

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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.