Home / 79,531.40-119,015.76-58,421.36

Finding the Fourth Proportional to 79,531.40, 119,015.76 and 58,421.36

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Solution

The fourth proportional to 79,531.40, 119,015.76 and 58,421.36 is: 87,425.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,531.40 : 119,015.76 = 58,421.36 : x
  2. Step 2: Convert to fraction form
    79,531.40/119,015.76 = 58,421.36/x
  3. Step 3: Cross multiply
    79,531.40x = 119,015.76 × 58,421.36
  4. Step 4: Simplify right side
    79,531.40x = 6,953,062,560.63
  5. Step 5: Solve for x
    x = 6,953,062,560.63/79,531.40
  6. Step 6: Final answer
    x = 87,425.38

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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.