Home / 84,740.12-127,110.90-21,560.30

Finding the Fourth Proportional to 84,740.12, 127,110.90 and 21,560.30

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Solution

The fourth proportional to 84,740.12, 127,110.90 and 21,560.30 is: 32,340.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,740.12 : 127,110.90 = 21,560.30 : x
  2. Step 2: Convert to fraction form
    84,740.12/127,110.90 = 21,560.30/x
  3. Step 3: Cross multiply
    84,740.12x = 127,110.90 × 21,560.30
  4. Step 4: Simplify right side
    84,740.12x = 2,740,548,501.72
  5. Step 5: Solve for x
    x = 2,740,548,501.72/84,740.12
  6. Step 6: Final answer
    x = 32,340.63

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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.