Home / 89,764.95-123,866.51-51,515.35

Finding the Fourth Proportional to 89,764.95, 123,866.51 and 51,515.35

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Solution

The fourth proportional to 89,764.95, 123,866.51 and 51,515.35 is: 71,085.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,764.95 : 123,866.51 = 51,515.35 : x
  2. Step 2: Convert to fraction form
    89,764.95/123,866.51 = 51,515.35/x
  3. Step 3: Cross multiply
    89,764.95x = 123,866.51 × 51,515.35
  4. Step 4: Simplify right side
    89,764.95x = 6,381,026,048.69
  5. Step 5: Solve for x
    x = 6,381,026,048.69/89,764.95
  6. Step 6: Final answer
    x = 71,085.94

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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.