Home / 70,515.42-97,311.29-38,684.31

Finding the Fourth Proportional to 70,515.42, 97,311.29 and 38,684.31

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Solution

The fourth proportional to 70,515.42, 97,311.29 and 38,684.31 is: 53,384.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,515.42 : 97,311.29 = 38,684.31 : x
  2. Step 2: Convert to fraction form
    70,515.42/97,311.29 = 38,684.31/x
  3. Step 3: Cross multiply
    70,515.42x = 97,311.29 × 38,684.31
  4. Step 4: Simplify right side
    70,515.42x = 3,764,420,108.86
  5. Step 5: Solve for x
    x = 3,764,420,108.86/70,515.42
  6. Step 6: Final answer
    x = 53,384.35

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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.