Home / 90,785.10-136,178.64-27,615.48

Finding the Fourth Proportional to 90,785.10, 136,178.64 and 27,615.48

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Solution

The fourth proportional to 90,785.10, 136,178.64 and 27,615.48 is: 41,423.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,785.10 : 136,178.64 = 27,615.48 : x
  2. Step 2: Convert to fraction form
    90,785.10/136,178.64 = 27,615.48/x
  3. Step 3: Cross multiply
    90,785.10x = 136,178.64 × 27,615.48
  4. Step 4: Simplify right side
    90,785.10x = 3,760,638,509.35
  5. Step 5: Solve for x
    x = 3,760,638,509.35/90,785.10
  6. Step 6: Final answer
    x = 41,423.52

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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.