Home / 90,085.74-124,317.50-49,800.54

Finding the Fourth Proportional to 90,085.74, 124,317.50 and 49,800.54

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Solution

The fourth proportional to 90,085.74, 124,317.50 and 49,800.54 is: 68,724.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,085.74 : 124,317.50 = 49,800.54 : x
  2. Step 2: Convert to fraction form
    90,085.74/124,317.50 = 49,800.54/x
  3. Step 3: Cross multiply
    90,085.74x = 124,317.50 × 49,800.54
  4. Step 4: Simplify right side
    90,085.74x = 6,191,078,631.45
  5. Step 5: Solve for x
    x = 6,191,078,631.45/90,085.74
  6. Step 6: Final answer
    x = 68,724.29

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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.