Home / 90,026.72-124,234.80-49,738.40

Finding the Fourth Proportional to 90,026.72, 124,234.80 and 49,738.40

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Solution

The fourth proportional to 90,026.72, 124,234.80 and 49,738.40 is: 68,637.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,026.72 : 124,234.80 = 49,738.40 : x
  2. Step 2: Convert to fraction form
    90,026.72/124,234.80 = 49,738.40/x
  3. Step 3: Cross multiply
    90,026.72x = 124,234.80 × 49,738.40
  4. Step 4: Simplify right side
    90,026.72x = 6,179,240,176.32
  5. Step 5: Solve for x
    x = 6,179,240,176.32/90,026.72
  6. Step 6: Final answer
    x = 68,637.85

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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.