Home / 90,214.86-124,495.59-49,928.70

Finding the Fourth Proportional to 90,214.86, 124,495.59 and 49,928.70

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Solution

The fourth proportional to 90,214.86, 124,495.59 and 49,928.70 is: 68,901.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,214.86 : 124,495.59 = 49,928.70 : x
  2. Step 2: Convert to fraction form
    90,214.86/124,495.59 = 49,928.70/x
  3. Step 3: Cross multiply
    90,214.86x = 124,495.59 × 49,928.70
  4. Step 4: Simplify right side
    90,214.86x = 6,215,902,964.43
  5. Step 5: Solve for x
    x = 6,215,902,964.43/90,214.86
  6. Step 6: Final answer
    x = 68,901.10

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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.