Home / 57,020.99-78,685.79-31,525.88

Finding the Fourth Proportional to 57,020.99, 78,685.79 and 31,525.88

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Solution

The fourth proportional to 57,020.99, 78,685.79 and 31,525.88 is: 43,503.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,020.99 : 78,685.79 = 31,525.88 : x
  2. Step 2: Convert to fraction form
    57,020.99/78,685.79 = 31,525.88/x
  3. Step 3: Cross multiply
    57,020.99x = 78,685.79 × 31,525.88
  4. Step 4: Simplify right side
    57,020.99x = 2,480,638,222.19
  5. Step 5: Solve for x
    x = 2,480,638,222.19/57,020.99
  6. Step 6: Final answer
    x = 43,503.95

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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.