Home / 90,108.51-124,358.81-49,825.32

Finding the Fourth Proportional to 90,108.51, 124,358.81 and 49,825.32

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Solution

The fourth proportional to 90,108.51, 124,358.81 and 49,825.32 is: 68,763.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,108.51 : 124,358.81 = 49,825.32 : x
  2. Step 2: Convert to fraction form
    90,108.51/124,358.81 = 49,825.32/x
  3. Step 3: Cross multiply
    90,108.51x = 124,358.81 × 49,825.32
  4. Step 4: Simplify right side
    90,108.51x = 6,196,217,253.94
  5. Step 5: Solve for x
    x = 6,196,217,253.94/90,108.51
  6. Step 6: Final answer
    x = 68,763.95

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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.