Home / 51,385.05-77,030.86-19,774.96

Finding the Fourth Proportional to 51,385.05, 77,030.86 and 19,774.96

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Solution

The fourth proportional to 51,385.05, 77,030.86 and 19,774.96 is: 29,644.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,385.05 : 77,030.86 = 19,774.96 : x
  2. Step 2: Convert to fraction form
    51,385.05/77,030.86 = 19,774.96/x
  3. Step 3: Cross multiply
    51,385.05x = 77,030.86 × 19,774.96
  4. Step 4: Simplify right side
    51,385.05x = 1,523,281,790.11
  5. Step 5: Solve for x
    x = 1,523,281,790.11/51,385.05
  6. Step 6: Final answer
    x = 29,644.45

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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.