Home / 40,565.40-60,837.30-12,485.40

Finding the Fourth Proportional to 40,565.40, 60,837.30 and 12,485.40

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Solution

The fourth proportional to 40,565.40, 60,837.30 and 12,485.40 is: 18,724.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,565.40 : 60,837.30 = 12,485.40 : x
  2. Step 2: Convert to fraction form
    40,565.40/60,837.30 = 12,485.40/x
  3. Step 3: Cross multiply
    40,565.40x = 60,837.30 × 12,485.40
  4. Step 4: Simplify right side
    40,565.40x = 759,578,025.42
  5. Step 5: Solve for x
    x = 759,578,025.42/40,565.40
  6. Step 6: Final answer
    x = 18,724.78

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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.