Home / 70,614.11-97,447.71-38,782.19

Finding the Fourth Proportional to 70,614.11, 97,447.71 and 38,782.19

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Solution

The fourth proportional to 70,614.11, 97,447.71 and 38,782.19 is: 53,519.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,614.11 : 97,447.71 = 38,782.19 : x
  2. Step 2: Convert to fraction form
    70,614.11/97,447.71 = 38,782.19/x
  3. Step 3: Cross multiply
    70,614.11x = 97,447.71 × 38,782.19
  4. Step 4: Simplify right side
    70,614.11x = 3,779,235,117.05
  5. Step 5: Solve for x
    x = 3,779,235,117.05/70,614.11
  6. Step 6: Final answer
    x = 53,519.55

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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.