Home / 62,431.60-93,647.40-20,878.60

Finding the Fourth Proportional to 62,431.60, 93,647.40 and 20,878.60

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Solution

The fourth proportional to 62,431.60, 93,647.40 and 20,878.60 is: 31,317.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,431.60 : 93,647.40 = 20,878.60 : x
  2. Step 2: Convert to fraction form
    62,431.60/93,647.40 = 20,878.60/x
  3. Step 3: Cross multiply
    62,431.60x = 93,647.40 × 20,878.60
  4. Step 4: Simplify right side
    62,431.60x = 1,955,226,605.64
  5. Step 5: Solve for x
    x = 1,955,226,605.64/62,431.60
  6. Step 6: Final answer
    x = 31,317.90

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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.