Home / 70,557.20-97,370.10-38,729.06

Finding the Fourth Proportional to 70,557.20, 97,370.10 and 38,729.06

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Solution

The fourth proportional to 70,557.20, 97,370.10 and 38,729.06 is: 53,446.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,557.20 : 97,370.10 = 38,729.06 : x
  2. Step 2: Convert to fraction form
    70,557.20/97,370.10 = 38,729.06/x
  3. Step 3: Cross multiply
    70,557.20x = 97,370.10 × 38,729.06
  4. Step 4: Simplify right side
    70,557.20x = 3,771,051,958.26
  5. Step 5: Solve for x
    x = 3,771,051,958.26/70,557.20
  6. Step 6: Final answer
    x = 53,446.74

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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.