Home / 57,048.45-78,720.01-31,551.35

Finding the Fourth Proportional to 57,048.45, 78,720.01 and 31,551.35

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Solution

The fourth proportional to 57,048.45, 78,720.01 and 31,551.35 is: 43,537.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,048.45 : 78,720.01 = 31,551.35 : x
  2. Step 2: Convert to fraction form
    57,048.45/78,720.01 = 31,551.35/x
  3. Step 3: Cross multiply
    57,048.45x = 78,720.01 × 31,551.35
  4. Step 4: Simplify right side
    57,048.45x = 2,483,722,587.51
  5. Step 5: Solve for x
    x = 2,483,722,587.51/57,048.45
  6. Step 6: Final answer
    x = 43,537.07

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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.