Home / 55,758.10-76,840.11-54,733.40

Finding the Fourth Proportional to 55,758.10, 76,840.11 and 54,733.40

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Solution

The fourth proportional to 55,758.10, 76,840.11 and 54,733.40 is: 75,427.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,758.10 : 76,840.11 = 54,733.40 : x
  2. Step 2: Convert to fraction form
    55,758.10/76,840.11 = 54,733.40/x
  3. Step 3: Cross multiply
    55,758.10x = 76,840.11 × 54,733.40
  4. Step 4: Simplify right side
    55,758.10x = 4,205,720,476.67
  5. Step 5: Solve for x
    x = 4,205,720,476.67/55,758.10
  6. Step 6: Final answer
    x = 75,427.97

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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.