Home / 90,157.04-124,408.32-49,869.72

Finding the Fourth Proportional to 90,157.04, 124,408.32 and 49,869.72

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Solution

The fourth proportional to 90,157.04, 124,408.32 and 49,869.72 is: 68,815.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,157.04 : 124,408.32 = 49,869.72 : x
  2. Step 2: Convert to fraction form
    90,157.04/124,408.32 = 49,869.72/x
  3. Step 3: Cross multiply
    90,157.04x = 124,408.32 × 49,869.72
  4. Step 4: Simplify right side
    90,157.04x = 6,204,208,084.07
  5. Step 5: Solve for x
    x = 6,204,208,084.07/90,157.04
  6. Step 6: Final answer
    x = 68,815.57

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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.