Home / 90,161.64-124,423.83-49,876.70

Finding the Fourth Proportional to 90,161.64, 124,423.83 and 49,876.70

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Solution

The fourth proportional to 90,161.64, 124,423.83 and 49,876.70 is: 68,830.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,161.64 : 124,423.83 = 49,876.70 : x
  2. Step 2: Convert to fraction form
    90,161.64/124,423.83 = 49,876.70/x
  3. Step 3: Cross multiply
    90,161.64x = 124,423.83 × 49,876.70
  4. Step 4: Simplify right side
    90,161.64x = 6,205,849,419.64
  5. Step 5: Solve for x
    x = 6,205,849,419.64/90,161.64
  6. Step 6: Final answer
    x = 68,830.26

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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.