Home / 89,012.08-122,795.12-51,264.48

Finding the Fourth Proportional to 89,012.08, 122,795.12 and 51,264.48

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Solution

The fourth proportional to 89,012.08, 122,795.12 and 51,264.48 is: 70,721.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,012.08 : 122,795.12 = 51,264.48 : x
  2. Step 2: Convert to fraction form
    89,012.08/122,795.12 = 51,264.48/x
  3. Step 3: Cross multiply
    89,012.08x = 122,795.12 × 51,264.48
  4. Step 4: Simplify right side
    89,012.08x = 6,295,027,973.34
  5. Step 5: Solve for x
    x = 6,295,027,973.34/89,012.08
  6. Step 6: Final answer
    x = 70,721.05

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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.