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Finding the Fourth Proportional to 108,344.40, 162,484.86 and 40,827.72

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Solution

The fourth proportional to 108,344.40, 162,484.86 and 40,827.72 is: 61,229.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,344.40 : 162,484.86 = 40,827.72 : x
  2. Step 2: Convert to fraction form
    108,344.40/162,484.86 = 40,827.72/x
  3. Step 3: Cross multiply
    108,344.40x = 162,484.86 × 40,827.72
  4. Step 4: Simplify right side
    108,344.40x = 6,633,886,368.32
  5. Step 5: Solve for x
    x = 6,633,886,368.32/108,344.40
  6. Step 6: Final answer
    x = 61,229.62

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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.