Home / 70,372.29-97,111.86-40,157.07

Finding the Fourth Proportional to 70,372.29, 97,111.86 and 40,157.07

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Solution

The fourth proportional to 70,372.29, 97,111.86 and 40,157.07 is: 55,415.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,372.29 : 97,111.86 = 40,157.07 : x
  2. Step 2: Convert to fraction form
    70,372.29/97,111.86 = 40,157.07/x
  3. Step 3: Cross multiply
    70,372.29x = 97,111.86 × 40,157.07
  4. Step 4: Simplify right side
    70,372.29x = 3,899,727,759.85
  5. Step 5: Solve for x
    x = 3,899,727,759.85/70,372.29
  6. Step 6: Final answer
    x = 55,415.67

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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.