Home / 91,032.96-136,569.60-38,487.36

Finding the Fourth Proportional to 91,032.96, 136,569.60 and 38,487.36

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Solution

The fourth proportional to 91,032.96, 136,569.60 and 38,487.36 is: 57,739.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,032.96 : 136,569.60 = 38,487.36 : x
  2. Step 2: Convert to fraction form
    91,032.96/136,569.60 = 38,487.36/x
  3. Step 3: Cross multiply
    91,032.96x = 136,569.60 × 38,487.36
  4. Step 4: Simplify right side
    91,032.96x = 5,256,203,360.26
  5. Step 5: Solve for x
    x = 5,256,203,360.26/91,032.96
  6. Step 6: Final answer
    x = 57,739.56

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.