Home / 104,621.76-144,376.33-56,876.31

Finding the Fourth Proportional to 104,621.76, 144,376.33 and 56,876.31

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Solution

The fourth proportional to 104,621.76, 144,376.33 and 56,876.31 is: 78,488.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,621.76 : 144,376.33 = 56,876.31 : x
  2. Step 2: Convert to fraction form
    104,621.76/144,376.33 = 56,876.31/x
  3. Step 3: Cross multiply
    104,621.76x = 144,376.33 × 56,876.31
  4. Step 4: Simplify right side
    104,621.76x = 8,211,592,901.74
  5. Step 5: Solve for x
    x = 8,211,592,901.74/104,621.76
  6. Step 6: Final answer
    x = 78,488.38

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.