Home / 52,158.24-78,190.80-18,870.96

Finding the Fourth Proportional to 52,158.24, 78,190.80 and 18,870.96

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Solution

The fourth proportional to 52,158.24, 78,190.80 and 18,870.96 is: 28,289.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,158.24 : 78,190.80 = 18,870.96 : x
  2. Step 2: Convert to fraction form
    52,158.24/78,190.80 = 18,870.96/x
  3. Step 3: Cross multiply
    52,158.24x = 78,190.80 × 18,870.96
  4. Step 4: Simplify right side
    52,158.24x = 1,475,535,459.17
  5. Step 5: Solve for x
    x = 1,475,535,459.17/52,158.24
  6. Step 6: Final answer
    x = 28,289.59

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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.