Home / 70,389.37-97,137.33-38,559.40

Finding the Fourth Proportional to 70,389.37, 97,137.33 and 38,559.40

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Solution

The fourth proportional to 70,389.37, 97,137.33 and 38,559.40 is: 53,211.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,389.37 : 97,137.33 = 38,559.40 : x
  2. Step 2: Convert to fraction form
    70,389.37/97,137.33 = 38,559.40/x
  3. Step 3: Cross multiply
    70,389.37x = 97,137.33 × 38,559.40
  4. Step 4: Simplify right side
    70,389.37x = 3,745,557,162.40
  5. Step 5: Solve for x
    x = 3,745,557,162.40/70,389.37
  6. Step 6: Final answer
    x = 53,211.97

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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.