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Finding the Fourth Proportional to 70,490, 97,267.32 and 38,650.52

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Solution

The fourth proportional to 70,490, 97,267.32 and 38,650.52 is: 53,332.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,490 : 97,267.32 = 38,650.52 : x
  2. Step 2: Convert to fraction form
    70,490/97,267.32 = 38,650.52/x
  3. Step 3: Cross multiply
    70,490x = 97,267.32 × 38,650.52
  4. Step 4: Simplify right side
    70,490x = 3,759,432,497.01
  5. Step 5: Solve for x
    x = 3,759,432,497.01/70,490
  6. Step 6: Final answer
    x = 53,332.85

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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.