Home / 45,127.68-67,702.08-13,961.28

Finding the Fourth Proportional to 45,127.68, 67,702.08 and 13,961.28

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Solution

The fourth proportional to 45,127.68, 67,702.08 and 13,961.28 is: 20,945.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,127.68 : 67,702.08 = 13,961.28 : x
  2. Step 2: Convert to fraction form
    45,127.68/67,702.08 = 13,961.28/x
  3. Step 3: Cross multiply
    45,127.68x = 67,702.08 × 13,961.28
  4. Step 4: Simplify right side
    45,127.68x = 945,207,695.46
  5. Step 5: Solve for x
    x = 945,207,695.46/45,127.68
  6. Step 6: Final answer
    x = 20,945.19

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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.