Home / 90,212.74-124,488.38-49,924.08

Finding the Fourth Proportional to 90,212.74, 124,488.38 and 49,924.08

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Solution

The fourth proportional to 90,212.74, 124,488.38 and 49,924.08 is: 68,892.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,212.74 : 124,488.38 = 49,924.08 : x
  2. Step 2: Convert to fraction form
    90,212.74/124,488.38 = 49,924.08/x
  3. Step 3: Cross multiply
    90,212.74x = 124,488.38 × 49,924.08
  4. Step 4: Simplify right side
    90,212.74x = 6,214,967,967.00
  5. Step 5: Solve for x
    x = 6,214,967,967.00/90,212.74
  6. Step 6: Final answer
    x = 68,892.36

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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.