Home / 58,280.55-87,399.39-20,830.50

Finding the Fourth Proportional to 58,280.55, 87,399.39 and 20,830.50

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Solution

The fourth proportional to 58,280.55, 87,399.39 and 20,830.50 is: 31,238.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,280.55 : 87,399.39 = 20,830.50 : x
  2. Step 2: Convert to fraction form
    58,280.55/87,399.39 = 20,830.50/x
  3. Step 3: Cross multiply
    58,280.55x = 87,399.39 × 20,830.50
  4. Step 4: Simplify right side
    58,280.55x = 1,820,572,993.40
  5. Step 5: Solve for x
    x = 1,820,572,993.40/58,280.55
  6. Step 6: Final answer
    x = 31,238.09

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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.