Home / 97,400.10-145,808.55-57,936.90

Finding the Fourth Proportional to 97,400.10, 145,808.55 and 57,936.90

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Solution

The fourth proportional to 97,400.10, 145,808.55 and 57,936.90 is: 86,731.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    97,400.10 : 145,808.55 = 57,936.90 : x
  2. Step 2: Convert to fraction form
    97,400.10/145,808.55 = 57,936.90/x
  3. Step 3: Cross multiply
    97,400.10x = 145,808.55 × 57,936.90
  4. Step 4: Simplify right side
    97,400.10x = 8,447,695,380.50
  5. Step 5: Solve for x
    x = 8,447,695,380.50/97,400.10
  6. Step 6: Final answer
    x = 86,731.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.