Home / 61,278.21-84,564.27-34,421.85

Finding the Fourth Proportional to 61,278.21, 84,564.27 and 34,421.85

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Solution

The fourth proportional to 61,278.21, 84,564.27 and 34,421.85 is: 47,502.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,278.21 : 84,564.27 = 34,421.85 : x
  2. Step 2: Convert to fraction form
    61,278.21/84,564.27 = 34,421.85/x
  3. Step 3: Cross multiply
    61,278.21x = 84,564.27 × 34,421.85
  4. Step 4: Simplify right side
    61,278.21x = 2,910,858,617.30
  5. Step 5: Solve for x
    x = 2,910,858,617.30/61,278.21
  6. Step 6: Final answer
    x = 47,502.34

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1.5x scale

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.