Home / 84,739.10-127,108.65-21,559.10

Finding the Fourth Proportional to 84,739.10, 127,108.65 and 21,559.10

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Solution

The fourth proportional to 84,739.10, 127,108.65 and 21,559.10 is: 32,338.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,739.10 : 127,108.65 = 21,559.10 : x
  2. Step 2: Convert to fraction form
    84,739.10/127,108.65 = 21,559.10/x
  3. Step 3: Cross multiply
    84,739.10x = 127,108.65 × 21,559.10
  4. Step 4: Simplify right side
    84,739.10x = 2,740,348,096.22
  5. Step 5: Solve for x
    x = 2,740,348,096.22/84,739.10
  6. Step 6: Final answer
    x = 32,338.65

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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.