Home / 91,258.86-136,910.28-28,929.36

Finding the Fourth Proportional to 91,258.86, 136,910.28 and 28,929.36

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Solution

The fourth proportional to 91,258.86, 136,910.28 and 28,929.36 is: 43,401.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,258.86 : 136,910.28 = 28,929.36 : x
  2. Step 2: Convert to fraction form
    91,258.86/136,910.28 = 28,929.36/x
  3. Step 3: Cross multiply
    91,258.86x = 136,910.28 × 28,929.36
  4. Step 4: Simplify right side
    91,258.86x = 3,960,726,777.82
  5. Step 5: Solve for x
    x = 3,960,726,777.82/91,258.86
  6. Step 6: Final answer
    x = 43,401.01

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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.