Home / 51,543.54-77,289.30-18,258.90

Finding the Fourth Proportional to 51,543.54, 77,289.30 and 18,258.90

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Solution

The fourth proportional to 51,543.54, 77,289.30 and 18,258.90 is: 27,379.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,543.54 : 77,289.30 = 18,258.90 : x
  2. Step 2: Convert to fraction form
    51,543.54/77,289.30 = 18,258.90/x
  3. Step 3: Cross multiply
    51,543.54x = 77,289.30 × 18,258.90
  4. Step 4: Simplify right side
    51,543.54x = 1,411,217,599.77
  5. Step 5: Solve for x
    x = 1,411,217,599.77/51,543.54
  6. Step 6: Final answer
    x = 27,379.14

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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.