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Finding the Fourth Proportional to 67,258.40, 100,887.60 and 18,010.40

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Solution

The fourth proportional to 67,258.40, 100,887.60 and 18,010.40 is: 27,015.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,258.40 : 100,887.60 = 18,010.40 : x
  2. Step 2: Convert to fraction form
    67,258.40/100,887.60 = 18,010.40/x
  3. Step 3: Cross multiply
    67,258.40x = 100,887.60 × 18,010.40
  4. Step 4: Simplify right side
    67,258.40x = 1,817,026,031.04
  5. Step 5: Solve for x
    x = 1,817,026,031.04/67,258.40
  6. Step 6: Final answer
    x = 27,015.60

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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.