Home / 71,516.37-98,697.23-39,685.35

Finding the Fourth Proportional to 71,516.37, 98,697.23 and 39,685.35

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Solution

The fourth proportional to 71,516.37, 98,697.23 and 39,685.35 is: 54,768.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,516.37 : 98,697.23 = 39,685.35 : x
  2. Step 2: Convert to fraction form
    71,516.37/98,697.23 = 39,685.35/x
  3. Step 3: Cross multiply
    71,516.37x = 98,697.23 × 39,685.35
  4. Step 4: Simplify right side
    71,516.37x = 3,916,834,116.58
  5. Step 5: Solve for x
    x = 3,916,834,116.58/71,516.37
  6. Step 6: Final answer
    x = 54,768.36

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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.