Home / 70,734.64-97,615.36-38,905.14

Finding the Fourth Proportional to 70,734.64, 97,615.36 and 38,905.14

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Solution

The fourth proportional to 70,734.64, 97,615.36 and 38,905.14 is: 53,689.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,734.64 : 97,615.36 = 38,905.14 : x
  2. Step 2: Convert to fraction form
    70,734.64/97,615.36 = 38,905.14/x
  3. Step 3: Cross multiply
    70,734.64x = 97,615.36 × 38,905.14
  4. Step 4: Simplify right side
    70,734.64x = 3,797,739,246.95
  5. Step 5: Solve for x
    x = 3,797,739,246.95/70,734.64
  6. Step 6: Final answer
    x = 53,689.95

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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.