Home / 90,204.17-124,478.67-49,919.63

Finding the Fourth Proportional to 90,204.17, 124,478.67 and 49,919.63

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Solution

The fourth proportional to 90,204.17, 124,478.67 and 49,919.63 is: 68,887.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,204.17 : 124,478.67 = 49,919.63 : x
  2. Step 2: Convert to fraction form
    90,204.17/124,478.67 = 49,919.63/x
  3. Step 3: Cross multiply
    90,204.17x = 124,478.67 × 49,919.63
  4. Step 4: Simplify right side
    90,204.17x = 6,213,928,714.10
  5. Step 5: Solve for x
    x = 6,213,928,714.10/90,204.17
  6. Step 6: Final answer
    x = 68,887.38

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.