Home / 84,743.10-127,114.65-21,563.10

Finding the Fourth Proportional to 84,743.10, 127,114.65 and 21,563.10

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Solution

The fourth proportional to 84,743.10, 127,114.65 and 21,563.10 is: 32,344.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,743.10 : 127,114.65 = 21,563.10 : x
  2. Step 2: Convert to fraction form
    84,743.10/127,114.65 = 21,563.10/x
  3. Step 3: Cross multiply
    84,743.10x = 127,114.65 × 21,563.10
  4. Step 4: Simplify right side
    84,743.10x = 2,740,985,909.42
  5. Step 5: Solve for x
    x = 2,740,985,909.42/84,743.10
  6. Step 6: Final answer
    x = 32,344.65

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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.