Home / 90,838.60-136,216.30-48,712.20

Finding the Fourth Proportional to 90,838.60, 136,216.30 and 48,712.20

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Solution

The fourth proportional to 90,838.60, 136,216.30 and 48,712.20 is: 73,045.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,838.60 : 136,216.30 = 48,712.20 : x
  2. Step 2: Convert to fraction form
    90,838.60/136,216.30 = 48,712.20/x
  3. Step 3: Cross multiply
    90,838.60x = 136,216.30 × 48,712.20
  4. Step 4: Simplify right side
    90,838.60x = 6,635,395,648.86
  5. Step 5: Solve for x
    x = 6,635,395,648.86/90,838.60
  6. Step 6: Final answer
    x = 73,045.99

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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.