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Finding the Fourth Proportional to 70,734.30, 97,612.56 and 38,903.64

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Solution

The fourth proportional to 70,734.30, 97,612.56 and 38,903.64 is: 53,686.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,734.30 : 97,612.56 = 38,903.64 : x
  2. Step 2: Convert to fraction form
    70,734.30/97,612.56 = 38,903.64/x
  3. Step 3: Cross multiply
    70,734.30x = 97,612.56 × 38,903.64
  4. Step 4: Simplify right side
    70,734.30x = 3,797,483,893.72
  5. Step 5: Solve for x
    x = 3,797,483,893.72/70,734.30
  6. Step 6: Final answer
    x = 53,686.60

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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.