Home / 55,640.12-76,742.70-40,537.40

Finding the Fourth Proportional to 55,640.12, 76,742.70 and 40,537.40

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Solution

The fourth proportional to 55,640.12, 76,742.70 and 40,537.40 is: 55,911.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,640.12 : 76,742.70 = 40,537.40 : x
  2. Step 2: Convert to fraction form
    55,640.12/76,742.70 = 40,537.40/x
  3. Step 3: Cross multiply
    55,640.12x = 76,742.70 × 40,537.40
  4. Step 4: Simplify right side
    55,640.12x = 3,110,949,526.98
  5. Step 5: Solve for x
    x = 3,110,949,526.98/55,640.12
  6. Step 6: Final answer
    x = 55,911.98

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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.