Home / 90,840.97-136,261.57-40,911.76

Finding the Fourth Proportional to 90,840.97, 136,261.57 and 40,911.76

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Solution

The fourth proportional to 90,840.97, 136,261.57 and 40,911.76 is: 61,367.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,840.97 : 136,261.57 = 40,911.76 : x
  2. Step 2: Convert to fraction form
    90,840.97/136,261.57 = 40,911.76/x
  3. Step 3: Cross multiply
    90,840.97x = 136,261.57 × 40,911.76
  4. Step 4: Simplify right side
    90,840.97x = 5,574,700,649.06
  5. Step 5: Solve for x
    x = 5,574,700,649.06/90,840.97
  6. Step 6: Final answer
    x = 61,367.69

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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.