Home / 65,316.06-89,549.09-64,135.08

Finding the Fourth Proportional to 65,316.06, 89,549.09 and 64,135.08

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Solution

The fourth proportional to 65,316.06, 89,549.09 and 64,135.08 is: 87,929.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,316.06 : 89,549.09 = 64,135.08 : x
  2. Step 2: Convert to fraction form
    65,316.06/89,549.09 = 64,135.08/x
  3. Step 3: Cross multiply
    65,316.06x = 89,549.09 × 64,135.08
  4. Step 4: Simplify right side
    65,316.06x = 5,743,237,730.40
  5. Step 5: Solve for x
    x = 5,743,237,730.40/65,316.06
  6. Step 6: Final answer
    x = 87,929.95

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Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.