Home / 90,215.06-135,335.15-37,612.45

Finding the Fourth Proportional to 90,215.06, 135,335.15 and 37,612.45

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Solution

The fourth proportional to 90,215.06, 135,335.15 and 37,612.45 is: 56,423.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,215.06 : 135,335.15 = 37,612.45 : x
  2. Step 2: Convert to fraction form
    90,215.06/135,335.15 = 37,612.45/x
  3. Step 3: Cross multiply
    90,215.06x = 135,335.15 × 37,612.45
  4. Step 4: Simplify right side
    90,215.06x = 5,090,285,697.88
  5. Step 5: Solve for x
    x = 5,090,285,697.88/90,215.06
  6. Step 6: Final answer
    x = 56,423.90

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1.5x scale

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.