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Finding the Fourth Proportional to 40,535.08, 60,802.62 and 12,455.08

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Solution

The fourth proportional to 40,535.08, 60,802.62 and 12,455.08 is: 18,682.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,535.08 : 60,802.62 = 12,455.08 : x
  2. Step 2: Convert to fraction form
    40,535.08/60,802.62 = 12,455.08/x
  3. Step 3: Cross multiply
    40,535.08x = 60,802.62 × 12,455.08
  4. Step 4: Simplify right side
    40,535.08x = 757,301,496.31
  5. Step 5: Solve for x
    x = 757,301,496.31/40,535.08
  6. Step 6: Final answer
    x = 18,682.62

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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.