Home / 57,020.94-78,685.53-31,525.30

Finding the Fourth Proportional to 57,020.94, 78,685.53 and 31,525.30

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Solution

The fourth proportional to 57,020.94, 78,685.53 and 31,525.30 is: 43,503.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,020.94 : 78,685.53 = 31,525.30 : x
  2. Step 2: Convert to fraction form
    57,020.94/78,685.53 = 31,525.30/x
  3. Step 3: Cross multiply
    57,020.94x = 78,685.53 × 31,525.30
  4. Step 4: Simplify right side
    57,020.94x = 2,480,585,056.81
  5. Step 5: Solve for x
    x = 2,480,585,056.81/57,020.94
  6. Step 6: Final answer
    x = 43,503.06

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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.