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Finding the Fourth Proportional to 70,008.45, 96,583.44 and 40,520.79

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Solution

The fourth proportional to 70,008.45, 96,583.44 and 40,520.79 is: 55,902.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,008.45 : 96,583.44 = 40,520.79 : x
  2. Step 2: Convert to fraction form
    70,008.45/96,583.44 = 40,520.79/x
  3. Step 3: Cross multiply
    70,008.45x = 96,583.44 × 40,520.79
  4. Step 4: Simplify right side
    70,008.45x = 3,913,636,946.96
  5. Step 5: Solve for x
    x = 3,913,636,946.96/70,008.45
  6. Step 6: Final answer
    x = 55,902.35

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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.