Home / 40,455.10-60,666.45-14,146.30

Finding the Fourth Proportional to 40,455.10, 60,666.45 and 14,146.30

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Solution

The fourth proportional to 40,455.10, 60,666.45 and 14,146.30 is: 21,213.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,455.10 : 60,666.45 = 14,146.30 : x
  2. Step 2: Convert to fraction form
    40,455.10/60,666.45 = 14,146.30/x
  3. Step 3: Cross multiply
    40,455.10x = 60,666.45 × 14,146.30
  4. Step 4: Simplify right side
    40,455.10x = 858,205,801.64
  5. Step 5: Solve for x
    x = 858,205,801.64/40,455.10
  6. Step 6: Final answer
    x = 21,213.79

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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.