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Finding the Fourth Proportional to 70,132.32, 105,200.64 and 30,669.12

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Solution

The fourth proportional to 70,132.32, 105,200.64 and 30,669.12 is: 46,004.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,132.32 : 105,200.64 = 30,669.12 : x
  2. Step 2: Convert to fraction form
    70,132.32/105,200.64 = 30,669.12/x
  3. Step 3: Cross multiply
    70,132.32x = 105,200.64 × 30,669.12
  4. Step 4: Simplify right side
    70,132.32x = 3,226,411,052.24
  5. Step 5: Solve for x
    x = 3,226,411,052.24/70,132.32
  6. Step 6: Final answer
    x = 46,004.62

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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.