Home / 91,026.74-136,525.48-38,429.39

Finding the Fourth Proportional to 91,026.74, 136,525.48 and 38,429.39

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Solution

The fourth proportional to 91,026.74, 136,525.48 and 38,429.39 is: 57,637.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,026.74 : 136,525.48 = 38,429.39 : x
  2. Step 2: Convert to fraction form
    91,026.74/136,525.48 = 38,429.39/x
  3. Step 3: Cross multiply
    91,026.74x = 136,525.48 × 38,429.39
  4. Step 4: Simplify right side
    91,026.74x = 5,246,590,915.86
  5. Step 5: Solve for x
    x = 5,246,590,915.86/91,026.74
  6. Step 6: Final answer
    x = 57,637.91

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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.