Home / 90,827.85-136,153.41-43,430.65

Finding the Fourth Proportional to 90,827.85, 136,153.41 and 43,430.65

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Solution

The fourth proportional to 90,827.85, 136,153.41 and 43,430.65 is: 65,103.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,827.85 : 136,153.41 = 43,430.65 : x
  2. Step 2: Convert to fraction form
    90,827.85/136,153.41 = 43,430.65/x
  3. Step 3: Cross multiply
    90,827.85x = 136,153.41 × 43,430.65
  4. Step 4: Simplify right side
    90,827.85x = 5,913,230,592.77
  5. Step 5: Solve for x
    x = 5,913,230,592.77/90,827.85
  6. Step 6: Final answer
    x = 65,103.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.