Home / 61,187.21-84,439.64-34,331.66

Finding the Fourth Proportional to 61,187.21, 84,439.64 and 34,331.66

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Solution

The fourth proportional to 61,187.21, 84,439.64 and 34,331.66 is: 47,378.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,187.21 : 84,439.64 = 34,331.66 : x
  2. Step 2: Convert to fraction form
    61,187.21/84,439.64 = 34,331.66/x
  3. Step 3: Cross multiply
    61,187.21x = 84,439.64 × 34,331.66
  4. Step 4: Simplify right side
    61,187.21x = 2,898,953,011.00
  5. Step 5: Solve for x
    x = 2,898,953,011.00/61,187.21
  6. Step 6: Final answer
    x = 47,378.41

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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.