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Finding the Fourth Proportional to 43,705.86, 65,557.08 and 12,541.12

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Solution

The fourth proportional to 43,705.86, 65,557.08 and 12,541.12 is: 18,811.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,705.86 : 65,557.08 = 12,541.12 : x
  2. Step 2: Convert to fraction form
    43,705.86/65,557.08 = 12,541.12/x
  3. Step 3: Cross multiply
    43,705.86x = 65,557.08 × 12,541.12
  4. Step 4: Simplify right side
    43,705.86x = 822,159,207.13
  5. Step 5: Solve for x
    x = 822,159,207.13/43,705.86
  6. Step 6: Final answer
    x = 18,811.19

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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.