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Finding the Fourth Proportional to 69,730.56, 96,234.84 and 42,890.76

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Solution

The fourth proportional to 69,730.56, 96,234.84 and 42,890.76 is: 59,193.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,730.56 : 96,234.84 = 42,890.76 : x
  2. Step 2: Convert to fraction form
    69,730.56/96,234.84 = 42,890.76/x
  3. Step 3: Cross multiply
    69,730.56x = 96,234.84 × 42,890.76
  4. Step 4: Simplify right side
    69,730.56x = 4,127,585,426.08
  5. Step 5: Solve for x
    x = 4,127,585,426.08/69,730.56
  6. Step 6: Final answer
    x = 59,193.35

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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.