Home / 90,025.84-124,240.64-49,738.74

Finding the Fourth Proportional to 90,025.84, 124,240.64 and 49,738.74

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Solution

The fourth proportional to 90,025.84, 124,240.64 and 49,738.74 is: 68,642.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,025.84 : 124,240.64 = 49,738.74 : x
  2. Step 2: Convert to fraction form
    90,025.84/124,240.64 = 49,738.74/x
  3. Step 3: Cross multiply
    90,025.84x = 124,240.64 × 49,738.74
  4. Step 4: Simplify right side
    90,025.84x = 6,179,572,455.58
  5. Step 5: Solve for x
    x = 6,179,572,455.58/90,025.84
  6. Step 6: Final answer
    x = 68,642.21

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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.