Home / 90,088.83-124,324.89-49,803.21

Finding the Fourth Proportional to 90,088.83, 124,324.89 and 49,803.21

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Solution

The fourth proportional to 90,088.83, 124,324.89 and 49,803.21 is: 68,729.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,088.83 : 124,324.89 = 49,803.21 : x
  2. Step 2: Convert to fraction form
    90,088.83/124,324.89 = 49,803.21/x
  3. Step 3: Cross multiply
    90,088.83x = 124,324.89 × 49,803.21
  4. Step 4: Simplify right side
    90,088.83x = 6,191,778,604.90
  5. Step 5: Solve for x
    x = 6,191,778,604.90/90,088.83
  6. Step 6: Final answer
    x = 68,729.70

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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.