Home / 70,931.11-97,893.80-40,725.90

Finding the Fourth Proportional to 70,931.11, 97,893.80 and 40,725.90

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Solution

The fourth proportional to 70,931.11, 97,893.80 and 40,725.90 is: 56,206.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,931.11 : 97,893.80 = 40,725.90 : x
  2. Step 2: Convert to fraction form
    70,931.11/97,893.80 = 40,725.90/x
  3. Step 3: Cross multiply
    70,931.11x = 97,893.80 × 40,725.90
  4. Step 4: Simplify right side
    70,931.11x = 3,986,813,109.42
  5. Step 5: Solve for x
    x = 3,986,813,109.42/70,931.11
  6. Step 6: Final answer
    x = 56,206.83

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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.