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Finding the Fourth Proportional to 61,458.96, 84,827.16 and 40,225.86

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Solution

The fourth proportional to 61,458.96, 84,827.16 and 40,225.86 is: 55,520.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,458.96 : 84,827.16 = 40,225.86 : x
  2. Step 2: Convert to fraction form
    61,458.96/84,827.16 = 40,225.86/x
  3. Step 3: Cross multiply
    61,458.96x = 84,827.16 × 40,225.86
  4. Step 4: Simplify right side
    61,458.96x = 3,412,245,462.36
  5. Step 5: Solve for x
    x = 3,412,245,462.36/61,458.96
  6. Step 6: Final answer
    x = 55,520.72

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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.