Home / 57,869.78-86,775.95-18,421.77

Finding the Fourth Proportional to 57,869.78, 86,775.95 and 18,421.77

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Solution

The fourth proportional to 57,869.78, 86,775.95 and 18,421.77 is: 27,623.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,869.78 : 86,775.95 = 18,421.77 : x
  2. Step 2: Convert to fraction form
    57,869.78/86,775.95 = 18,421.77/x
  3. Step 3: Cross multiply
    57,869.78x = 86,775.95 × 18,421.77
  4. Step 4: Simplify right side
    57,869.78x = 1,598,566,592.43
  5. Step 5: Solve for x
    x = 1,598,566,592.43/57,869.78
  6. Step 6: Final answer
    x = 27,623.51

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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.