Home / 70,516.42-97,312.67-38,685.31

Finding the Fourth Proportional to 70,516.42, 97,312.67 and 38,685.31

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Solution

The fourth proportional to 70,516.42, 97,312.67 and 38,685.31 is: 53,385.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,516.42 : 97,312.67 = 38,685.31 : x
  2. Step 2: Convert to fraction form
    70,516.42/97,312.67 = 38,685.31/x
  3. Step 3: Cross multiply
    70,516.42x = 97,312.67 × 38,685.31
  4. Step 4: Simplify right side
    70,516.42x = 3,764,570,805.88
  5. Step 5: Solve for x
    x = 3,764,570,805.88/70,516.42
  6. Step 6: Final answer
    x = 53,385.73

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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.