Home / 70,972.55-97,942.20-38,707.23

Finding the Fourth Proportional to 70,972.55, 97,942.20 and 38,707.23

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Solution

The fourth proportional to 70,972.55, 97,942.20 and 38,707.23 is: 53,416.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,972.55 : 97,942.20 = 38,707.23 : x
  2. Step 2: Convert to fraction form
    70,972.55/97,942.20 = 38,707.23/x
  3. Step 3: Cross multiply
    70,972.55x = 97,942.20 × 38,707.23
  4. Step 4: Simplify right side
    70,972.55x = 3,791,071,262.11
  5. Step 5: Solve for x
    x = 3,791,071,262.11/70,972.55
  6. Step 6: Final answer
    x = 53,416.02

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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.