Home / 85,926.72-128,927.20-46,511.84

Finding the Fourth Proportional to 85,926.72, 128,927.20 and 46,511.84

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Solution

The fourth proportional to 85,926.72, 128,927.20 and 46,511.84 is: 69,787.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,926.72 : 128,927.20 = 46,511.84 : x
  2. Step 2: Convert to fraction form
    85,926.72/128,927.20 = 46,511.84/x
  3. Step 3: Cross multiply
    85,926.72x = 128,927.20 × 46,511.84
  4. Step 4: Simplify right side
    85,926.72x = 5,996,641,298.05
  5. Step 5: Solve for x
    x = 5,996,641,298.05/85,926.72
  6. Step 6: Final answer
    x = 69,787.85

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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.