Home / 57,052.70-78,726.67-31,555.01

Finding the Fourth Proportional to 57,052.70, 78,726.67 and 31,555.01

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Solution

The fourth proportional to 57,052.70, 78,726.67 and 31,555.01 is: 43,542.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,052.70 : 78,726.67 = 31,555.01 : x
  2. Step 2: Convert to fraction form
    57,052.70/78,726.67 = 31,555.01/x
  3. Step 3: Cross multiply
    57,052.70x = 78,726.67 × 31,555.01
  4. Step 4: Simplify right side
    57,052.70x = 2,484,220,977.05
  5. Step 5: Solve for x
    x = 2,484,220,977.05/57,052.70
  6. Step 6: Final answer
    x = 43,542.57

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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.