Home / 84,538.40-126,814.08-25,369.76

Finding the Fourth Proportional to 84,538.40, 126,814.08 and 25,369.76

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Solution

The fourth proportional to 84,538.40, 126,814.08 and 25,369.76 is: 38,056.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,538.40 : 126,814.08 = 25,369.76 : x
  2. Step 2: Convert to fraction form
    84,538.40/126,814.08 = 25,369.76/x
  3. Step 3: Cross multiply
    84,538.40x = 126,814.08 × 25,369.76
  4. Step 4: Simplify right side
    84,538.40x = 3,217,242,774.22
  5. Step 5: Solve for x
    x = 3,217,242,774.22/84,538.40
  6. Step 6: Final answer
    x = 38,056.58

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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.