Home / 57,985.69-87,011.99-31,331.77

Finding the Fourth Proportional to 57,985.69, 87,011.99 and 31,331.77

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Solution

The fourth proportional to 57,985.69, 87,011.99 and 31,331.77 is: 47,015.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,985.69 : 87,011.99 = 31,331.77 : x
  2. Step 2: Convert to fraction form
    57,985.69/87,011.99 = 31,331.77/x
  3. Step 3: Cross multiply
    57,985.69x = 87,011.99 × 31,331.77
  4. Step 4: Simplify right side
    57,985.69x = 2,726,239,657.92
  5. Step 5: Solve for x
    x = 2,726,239,657.92/57,985.69
  6. Step 6: Final answer
    x = 47,015.73

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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.