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Finding the Fourth Proportional to 70,086.08, 96,710.28 and 39,875.28

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Solution

The fourth proportional to 70,086.08, 96,710.28 and 39,875.28 is: 55,023.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,086.08 : 96,710.28 = 39,875.28 : x
  2. Step 2: Convert to fraction form
    70,086.08/96,710.28 = 39,875.28/x
  3. Step 3: Cross multiply
    70,086.08x = 96,710.28 × 39,875.28
  4. Step 4: Simplify right side
    70,086.08x = 3,856,349,493.88
  5. Step 5: Solve for x
    x = 3,856,349,493.88/70,086.08
  6. Step 6: Final answer
    x = 55,023.04

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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.