Home / 61,421.48-92,132.64-21,440.30

Finding the Fourth Proportional to 61,421.48, 92,132.64 and 21,440.30

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Solution

The fourth proportional to 61,421.48, 92,132.64 and 21,440.30 is: 32,160.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,421.48 : 92,132.64 = 21,440.30 : x
  2. Step 2: Convert to fraction form
    61,421.48/92,132.64 = 21,440.30/x
  3. Step 3: Cross multiply
    61,421.48x = 92,132.64 × 21,440.30
  4. Step 4: Simplify right side
    61,421.48x = 1,975,350,980.73
  5. Step 5: Solve for x
    x = 1,975,350,980.73/61,421.48
  6. Step 6: Final answer
    x = 32,160.59

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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.