Home / 70,827.76-97,742.08-38,996.72

Finding the Fourth Proportional to 70,827.76, 97,742.08 and 38,996.72

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Solution

The fourth proportional to 70,827.76, 97,742.08 and 38,996.72 is: 53,815.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,827.76 : 97,742.08 = 38,996.72 : x
  2. Step 2: Convert to fraction form
    70,827.76/97,742.08 = 38,996.72/x
  3. Step 3: Cross multiply
    70,827.76x = 97,742.08 × 38,996.72
  4. Step 4: Simplify right side
    70,827.76x = 3,811,620,525.98
  5. Step 5: Solve for x
    x = 3,811,620,525.98/70,827.76
  6. Step 6: Final answer
    x = 53,815.35

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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.