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Finding the Fourth Proportional to 72,496.48, 100,242.48 and 63,165.28

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Solution

The fourth proportional to 72,496.48, 100,242.48 and 63,165.28 is: 87,340.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,496.48 : 100,242.48 = 63,165.28 : x
  2. Step 2: Convert to fraction form
    72,496.48/100,242.48 = 63,165.28/x
  3. Step 3: Cross multiply
    72,496.48x = 100,242.48 × 63,165.28
  4. Step 4: Simplify right side
    72,496.48x = 6,331,844,317.09
  5. Step 5: Solve for x
    x = 6,331,844,317.09/72,496.48
  6. Step 6: Final answer
    x = 87,340.02

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.